電子映像拡大器電子映像拡大器

The whole-boy capillaroscope “GOKO Bscan-Z” which is made by GOKO Imaging Devices Co., Ltd gives sharper, clearer and easier capillary observation.
    • Instruction on how to observe nailfold capillaries by the capillaroscope GOKO Bscan-Z
    • Instruction on how to observe capillaries over the whole body by the capillaroscope GOKO Bscan-Z
    • Instruction on how to observe capillaries over the whole body by the capillaroscope GOKO Bscan-Z
    • Sample picture of nailfold capillaries which was taken by the capillaroscope GOKO Bscan-Z
    • Sample picture of tongue papillae capillaries which was taken by the capillaroscope GOKO Bscan-Z
    • Sample picture of labial microvascular capillaries in lips which was taken by the capillaroscope GOKO Bscan-Z
    • A 2-ways-to-use capillaroscope: "Desk capillaroscopy" and "Handheld capillaroscopy"
    • Sharper and clearer images: Features GOKO's precise Japanese optics.
    • Powerful zoom: Simply rotating the ring switches from low to high magnification without having to make lense changes.
    • Captures smooth live video without time lags (NTSC Real time system).
    • MADE IN JAPAN

    * The GOKO Bscan-Z is not a medical device.

  • Features

    A 2-ways-to-use video capillaroscope

    Instruction on how to observe nailfold capillaries by the capillaroscope GOKO Bscan-Z The observation of nail fold capillaries

    (1) Nail fold capillaroscopy using dedicated stand unit

    Newly designed stand unit with superb image stabilizer function allows capillary observation of the nail fold in nearly a total stationary state.
    Thus far, it has been difficult to observe nail fold capillaries in ultra-high magnifications because quality is easily affected by even the slightest movements at these high magnifications. However, the stand unit GOKO Bscan-Z facilitates "motionless observation" with its novel structure that keeps the camera and fingers stable.

    (2) Whole body capillary observation as "Handheld capillaroscope"

    Instruction on how to observe capillaries over the whole body by the capillaroscope GOKO Bscan-Z The observation of capillaries over the whole body surface by attaching Focus cap

    The GOKO Bscan-Z can be used not only as "desktop capillaroscope" but also as a "handheld capillaroscope." It is suited for enhanced magnified observation of capillaries over the whole body surface.
    All you need to do is just touch the skin surface with the Focus cap of the GOKO Bscan-Z and turn magnification ring.
    Because of its compact and handheld shape, the GOKO Bscan-Z is ideal for those with complaints like, "the camera weight compresses the capillaries".

    Additional function
    Greater clarity and higher-contrast!

    A good optical system is essential to achieve good clarity and better image quality. GOKO has a proud history of more than 60 years' as a Japanese manufacturer of finished optical products, and we place considerable empahsis on developing fine optical systems and not just increasing the number of pixels. Our fine optical system realizes greater clarity and better quality.
    GOKO's optical innovation achieves greater clarity and higher contrast to enable the observation of flow of white corpuscles in capillaries as well.

    Additional function
    Anti-vibration design!

    The GOKO Bscan-Z greatly reduces vibrations of fingers with the improved stage unit and anti-vibration attachment (standard accessory). It improves work efficiency of taking photographs or observing of circulation in the capillaries as well.

    Captures smooth live video without time lags

    An NTSC full-motion real-time video system captures extremely smooth real-time monitoring with no time lags.

    Sample picture of nailfold capillaries which magnified up to 100 times which was taken by the capillaroscope GOKO Bscan-ZNailfold capillaries (100X)
    Sample picture of nailfold capillaries which magnified up to 410 times which was taken by the capillaroscope GOKO Bscan-ZNailfold capillaries (410X)

    Optical zoom provides clear images. No need to change lenses!

    The GOKO Bscan-Z adopts optical zoom which provides clearer images even in ultra-high magnification. Moreover, you can easily change magnification from lower magnification (100X) to ultra-high magnification (410X) without changing lenses simply rotating the ring.

    Indistinct picture of nailfold capillaries which was taken by a traditional capillaroscopeTraditional capillaroscope
    Clear picture of nailfold capillaries which was taken by the capillaroscope GOKO Bscan-ZGOKO Bscan-Z

    Gives sharper and clearer images of even red capsules.

    Outstanding optical design of GOKO Bscan-Z provides top-class clear image of capillaries. Blood flow is clearly observed even the movement of red cells. Even ultra-magnified images are very clear because the zoom is not digital, but optical.

    Extremely light and compact!

    The compact and portable camera unit of the GOKO Bscan-Z is only 150 g, which enables single-handed operation for long periods of time without stress.

    Features high luminosity LED: cool, bright, and extremely long-life!

    High luminosity LEDs which are used for the capillaroscope GOKO Bscan-Z

    The GOKO Bscan-Z features a maintenance-free lighting system. Unlike devices with halogen lamps, there is no need to change bulbs.
    No heat is generated that may damage delicate objects such as skin or scalp over long observation periods.

    Appearance of the exclusive carrying case for the whole body capillaroscope GOKO Bscan-ZAppearance of the exclusive carrying case for the whole body capillaroscope GOKO Bscan-Z
    Inner cushion of the exclusive carrying case for the whole body capillaroscope GOKO Bscan-ZInner cushion of the exclusive carrying case for the whole body capillaroscope GOKO Bscan-Z

    New exclusive carrying case is launched!

    Brand-new carrying case is exclusively designed for the GOKO Bscan-Z and its options. The GOKO Bscan-Z and its accessories can be stored in order and carried conveniently.

    Screenshot which shows how to measure the length of capillaries using optional NTSC-USB 2.0 Converter Set.Measurement software
    NTSC-USB 2.0 converter SetNTSC-USB2.0 Converter Set

    Can be connected to your PC

    NTSC-USB 2.0 Converter set

    The optional NTSC-USB 2.0 Converter set allows for real-time display of GOKO Bscan-Z images on a PC, ensuring a maximum of 30 uncompressed frames per second. Kit also comes with a GOKO special calibration chart. This converter set allows accurately displaying and saving images in an aspect ratio of 4:3.
    It provides a clear and precise image that is in an accurate 4:3 format.

  • Sample Images of the GOKO Bscan-Z

    The GOKO Bscan-Z is favorably used also as capillaroscopy system among famous universities, hospitals, health centers, drugstores, aesthetic beauty salons and many others. GOKO's own fine optical system realizes greater clarity and better quality in ultra-high-magnification images and even enables the observation of blood flow, red corpuscles and white corpuscles inside the capillaries.

    Nail fold capillaries

    • Nailfold capillaries which are magnified up to 410 times which was taken by the capillaroscope GOKO Bscan-ZNailfold capillaries (410×)
    • Nailfold capillaries which are magnified up to 410 times which was taken by the capillaroscope GOKO Bscan-ZNailfold capillaries (410×)
    • Nailfold capillaries which are magnified up to 100 times which was taken by the capillaroscope GOKO Bscan-ZNailfold capillaries (100×)

    Tongue Papillae Capillaries

    • Tongue papillae capillaries which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZTongue papillae capillaries (390×)
    • Tongue papillae capillaries which are magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZTongue papillae capillaries (105×)
    • Tongue papillae capillaries which are magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZTongue papillae capillaries (105×)

    Mole and Capillaries

    • Mole and capillaries which are magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZMole and capillaries (105×)
    • Mole and capillaries which are magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZMole and capillaries (105×)
    • Mole and capillaries which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZMole and capillaries (390×)

    Oral Mucosal Capillaries (Labial Microvascular)

    • Labial Microvascular which are magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZLabial Microvascular (105×)
    • Lip capillaries which are magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZLabial Microvascular (105×)
    • Lip capillaries which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZLabial Microvascular (390×)

    Blood Vessels in Gum

    • Capillaries in upper gum which are magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZUpper gingiva (105X)
    • Upper gingiva capillaries which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZUpper gingiva (390X)
    • Lower gingiva capillaries which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZLower gingiva (390X)
    • Lower gingiva capillaries which are magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZBlood vessels in gum (105×)
    • Lower gingiva capillaries which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZBlood vessels in gum (390×)

    Capillaries in Scalp

    • Scalp capillaries which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZCapillaries in scalp (390×)
    • Scalp capillaries which are magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZCapillaries in scalp (105×)

    Capillaries in Forearm

    • Forearm capillaries which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZCapillaries in forearm (390×)
    • Forearm capillaries which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZCapillaries in forearm (390×)

    Others

    • Skin surface which is magnified up to 105 times which was taken by the capillaroscope GOKO Bscan-ZSkin Texture
    • Hair roots which are magnified up to 390 times which was taken by the capillaroscope GOKO Bscan-ZRoots of Hair

    CAUTION:

    * Copying, modifying, reproducing, transmitting, etc. the contents on this site, for whatever purpose, is strictly prohibited without our prior written permission, regardless of the method or intent.

    * Requires oil application to the object surface in observing capillaries.

  • Options

    • NTSC-USB2.0 Converter Set
      NTSC-USB 2.0 converter Set

      Used to convert NTSC analog images to uncompressed digital images for real-time display on a computer and saves them as video and still image

      More information
    • 9.7-inch LCD monitor for the GOKO Bscan-Z
      9.7-inch LCD monitor for the GOKO Bscan-Z

      LCD monitor with optimal color adjustment for capillary image of the GOKO Bscan-Z.

      More information
    • Exclusive carrying case for the GOKO Bscan-Z
      Exclusive carrying case for the GOKO Bscan-Z

      GOKO Bscan-Z and accessories can be stored in order.

      More information
    • Oil set for the GOKO Bscan series
      Oil set for GOKO Bscan series

      Five sets of oil (15 ml) for the observation of capillaries by the GOKO Bscan series.

      More information
    • Gel set for the GOKO Bscan series
      Gel set for GOKO Bscan series

      Five sets of gel (15 ml) for the observation of capillaries in the scalp by the GOKO Bscan series.

      More information
    • Non-reflex cap set for the GOKO Bscan-Z
      Non-reflex cap set for the GOKO Bscan-Z

      Enables "non-reflex" capillary observation of the whole body (patent pending). It does not squeeze the capillaries of the site to be observed.

      More information
    • stand-for-experimental-animals-1.jpg
      Exclusive stand for the observation of small animals

      Robust stand with a flexible arm that enables stable observation of small animals such as mouse and rat.

      More information

  • Clients' Intended Use and Application

    For universities, hospitals, and medical institutes

    • In research demonstrations and monographs at universities and laboratories
    • To observe/research peripheral blood flow or skin
    • To observe/research pressure ulcer
    • To observe/research thermal burns
    • For capillaroscopy to observe/research diabetes
    • For capillaroscopy (NVC) to observe/research autoimmune rheumatic diseases such as scleroderma, connective tissue disease, or Raynaud phenomenon

    For health promotion businesses

    • For the useful demonstration of the promotion of health related equipment, hydrogen/carbonated water, and supplements
    • To demonstrate the effect of "detox" at a stone sauna, carbon dioxide bath, or fitness club
    • To observe the change in blood circulation following a massage in fitness and massage centers

    For the beauty and esthetic industries

    • To demonstrate the effectiveness of new products for the improvement of skin or scalp care
    • To observe improvements in blood circulation
    • As an advisory tool for life style modification at pharmacies and drugstores

    Others

    • To inspect printed surface
    • To observe skin disease at veterinary clinics and animal medical centers
    • Capillaroscope or video capillarsocope in educational facillities

    Installation Record of the GOKO Bscan series

    Universities

    • Tokyo University
    • Tsukuba University
    • Nagoya University
    • Osaka University
    • Hiroshima University
    • Kyushu Institute of Technology
    • Kanazawa University
    • Toyama University
    • Niigata University
    • University of Miyazaki
    • Fukushima University
    • Saitama Prefectural University
    • Kyoto Prefectural University
    • Okayama Prefectural University
    • Yokohama City University
    • Prefectural University of Hiroshima
    • Hiroshima City University
    • Kanagawa University of Human Services
    • Tokushima University
    • Kyoto Prefectural University of Medicine
    • Wakayama Medical University
    • Chuo University
    • Kindai University
    • Nihon University
    • Kyoto College of Nursing
    • Shiga University of Medical Science
    • Waseda University
    • Keio University
    • Tokyo Women's Medical University
    • Hosei University
    • Shibaura Institute of Technology
    • Kanazawa Medical University
    • Shikoku University
    • Tokai University
    • Juntendo University
    • Tokyo Medical University
    • St. Marianna School of Medicine
    • Dokkyo University
    • Kokushikan University
    • Jissen Women's Educational Institute
    • International University of Health and Welfare
    • Osaka Dental University
    • Osaka Institute of Technology
    • Hiroshima International University
    • Tokushima Bunri University
    • Jobu University
    • Tokyo Polytechnic University
    • Ryotokuji University
    • Meisei University
    • International Pacific University
    • Yokohama Soei University
    • Sojo University
    • Takasaki University of Health and Welfare
    • Kinjo Gakuin University
    • Chugoku Gakuen University
    • Kawamura Gakuen Woman's University
    • Chiba Institute of Technology
    • Bunkyo Gakuin University
    • Meijo University
    • Koshien University
    • St. Catherine University
    • Showa Gakuin Junior College
    • Shokei Gakuin University
    • Toho University
    • Osaka Shoin Women's University

    and many others

    Hospitals

    • National Cerebral and Cardiovascular Center
    • National Disaster Medical Center
    • Nagasaki Hospital
    • Kumamoto City Hospital
    • Asao General Hospital
    • Sagamihara National Hospital
    • Yokohama Rosai Hospital

    and many others

    Local Health Centers

    • Yaizu City
    • Odawara City
    • Tagawa City
    • Nasukarasuyama City

    and many others

    Drugstores

    • Health Care Store SEIJO
    • CREATE SD. Co., Ltd.

    and many others

    Enterprises

    • Shiseido Co., Ltd.
    • Kao Corporation
    • FANCL Corporation
    • TAKARA BELMONT Corp
    • SVENSON CO., LTD.
    • POLACHEMICAL INDUSTRIES, INC.
    • Dr. Recella. Co. ltd.
    • YAMANOBEAUTYMATEGROUP INC.
    • Missionary
    • Milbon Co., Ltd.
    • Sunny Health Co., Ltd.
    • Nippo Pharmaceutical Industries
    • ROHTO Pharmaceutical Co., Ltd.
    • Zenyaku Kogyo Co., Ltd.
    • Mikimoto Pharmaceutical Co., Ltd.
    • Toho Pharmaceutical Co., Ltd.
    • Kyowa Hakko Kirin Co., Ltd.
    • LOTTE Co., Ltd.
    • YakultHonsha Co., Ltd.
    • Saraya. Co., Ltd.
    • Toyota Motor Corporation
    • TOKYO GAS Co., Ltd.
    • Sharp Corporation
    • Corona Corporation
    • Hitachi, Ltd.
    • West Nippon Expressway Company Limited
    • Fujitsu Limited
    • Marubeni Corporation
    • DENSO
    • SHiDAX COMMUNITY CORPORATION
    • Uokuni Sohonsha Co., Ltd.
    • Seiyo Hood-Compass Group, Inc.
    • Nikkyo Create, Ltd.
    • NIPPON GENERAL FOOD
    • Marukome Co., Ltd.
    • NS FaFa Japan Co., Ltd.
    • Panasonic Corporation
    • Yomeishu Seizo Co., Ltd.
    • TAIHO PHARMACEUTICAL CO., LTD.
    • INTERFACE Co., Ltd.
    • SNOWDEN Co., Ltd.
    • Rize clinic
    • Septem Soken Co., Ltd.
    • MIYASAKA RUBBER CO., LTD.
    • Melodian Co., Ltd.
    • NITTO PHARMACEUTICAL INDUSTRIES, LTD.
    • Nissin Chemical Co., Ltd.
    • MARUZEN PHORMACEUTICALS CO., LTD.

    and many others

    Media Coverage of the GOKO Bscan series

    "GOKO Bscan series" is widely used in various mass media such as Japanese popular TV programs.

    25.04.2018 TV Asahi Corporation Appeared on a TV program broadcasted by TV Asahi Corporation.
    13.04.2018 the Meeting of Rheumatology Appeared in a program of the Annual General Assembly and Scientific Meeting of the Japan College of Rheumatology.
    27.12.2017 TV Asahi Corporation Appeared in a TV program broadcasted by TV Asahi Corporation.
    28.04.2017 Kansai Telecasting Corporation Appeared on a TV program broadcasted by Kansai Telecasting Corporation.
    25.04.2017 TV Asahi Corporation Appeared on a TV program, "Minna-No Katei-No Igaku" (Family Medicine for Everyone) to observe nailfold capillaries and sweat from sweat glands.
    31.12.2016 Tokyo Broadcasting System Television, Inc. Used in TV program broadcasted by TBS (Tokyo Broadcasting System Television, Inc.) to observe shape of capillaries and flow in blood vessels.
    07.11.2016 Tokyo Broadcasting System Television, Inc. Used in TV program broadcasted by TV TOKYO Corporation to observe shape of capillaries and flow in blood vessels.
    22.2.2016 Nikkei Marketing Journal Highlighted in the article as the high-magnification video microscope which enables to observe white corpuscles in capillaries with greater clearly.
    17.2.2016 Nikkei Sangyo Shimbun
    (Nikkei Industrial Journal)    		 Highlighted in the article as the high-magnification video microscope which enables to observe white corpuscles in capillaries with greater clearly.
    27.7.2015 Tokyo Broadcasting
    System Television    		 Used as handheld video microscope to observe blood flow and pores on the face.
    14.7.2015 Tokyo Broadcasting
    System Television    		 Introduced as excellent capillaroscopy system that FANCL, one of the most famous manufacturers of cosmetics and functional foods in Japan, uses to let their customers see their capillary shape and blood flow.
    10.8.2014 Nippon Television To observe the change of blood flow in capillaries in scalps following a massage.
    26.9.2013 Nippon Television To observe sweat from sweat glands, shirt fibers, and capillaries in fingers, lips, and scalps.
    7.9.2013 Nippon Television Used as high-magnification video microscope to examine the weakness of mites.
    12.7.2013 Fuji Television Used as capillaroscopy system to examine the effects of refreshing in a cool environment.
    3.4.2013 NHK General TV Used as high-magnification video microscope to verify a woman's "thinning hair."
    12.2.2013 Asahi Broadcasting To observe blood flow during bathing in a hot spring on the "Takeshi's Medical Check-Up Show."
    15.1.2013 Tokyo Broadcasting
    System Television    		 Used as capillaroscopy system to verify dehydration in winter.
    21.12.2012 NHK General TV Used as capillaroscopy system to verify dehydration in winter.
    13.12.2012 NHK General TV Used as capillaroscopy system to verify dehydration in winter.
    5.12.2012 NHK BS To observe the capillaries in dark circle under the eyes.
    26.11.2012 BS Nippon Television Used as high-magnification video microscope in a demonstration of how to increase hair volume.
    31.10.2012 NHK BS Used as capillaroscopy system to observe lip capillaries.
    10.10.2012 NHK General TV To observe the change of blood flow in a calf's capillaries following a massage.
    24.9.2012 Fuji Television Used as capillaroscopy system to observe the change in blood flow as affected by a sudden change of temperature.
    12.9.2012 NHK BS Used as capillaroscopy system to observe blood flow to check the effect of carbonated water.
    29.8.2012 NHK General TV Used as capillaroscopy system to observe blood flow in a study of bathing methods that attempted to avoid the summer heat.
    26.8.2012 Tokyo Broadcasting
    System Television    		 To observe the change of blood flow to check the effect of carbonated water.
    17.7.2012 Fuji Television Used as capillaroscopy system to verify summer weariness resulting from having too much cold food or drink.
    12.7.2012 Fuji Television Used as high-magnification video microscope to verify armpit sweat.
    25.6.2012 Asahi Broadcasting Used as high-magnification video microscope to observe the effects of "knee jiggling" to cure puffy legs.
    21.6.2012 Fuji Television Used as capillaroscopy system to check summer weariness.
    2.12.2011 NHK Educational TV Used as capillaroscopy system to observe peripheral blood flow in the fingers.
    26.11.2011 Nippon Television Used as high-magnification video microscope to observe skin texture to check the effect of collagen.
    12.11.2011 Nippon Television Used as capillaroscopy system to observe the change of blood flow to check the effects of carbonated water.
    3.9.2011 Nippon Television Used as capillaroscopy system to observe the change of blood flow affected by autonomic nerves.
    28.5.2011 Nippon Television Used as capillaroscopy system to observe the change of blood flow affected by atmospheric pressure.
    05.09.2010 NHK Used as high-magnification video microscope to observe the structure of dots on electronic books.
    7.8.2010 Nippon Television Used as capillaroscopy system to examine heatstroke.
    7.8.2010 NHK BShi Used as capillaroscopy system to examine the change of blood flow as affected by feelings of fear.
    15.5.2010 Nippon Television Used as high-magnification video microscope to study enlarged tissues of papers to determine if it was "grain long" or "grain short."
    24.4.2010 Nippon Television Used as capillaroscopy system to examine blood flow in the lip, scalp, and skin.
    17.4.2010 Nippon Television Used as high-magnification video microscope to study the enlarged tissues of the surface of hand gloves.
    13.2.2010 Nippon Television Used as capillaroscopy system to study effective bathing.
    19.9.2008 Nippon Television Used as high-magnification video microscope to examine the condition of the tongue.
    13.9.2008 Nippon Television Used as capillaroscopy system to examine blood flow in capillaries.
    3.12.2007 NHK Used as capillaroscopy system to study the circulation of body fluid.
    1.12.2007 NHK Used as capillaroscopy system to study poor blood circulation.
    14.8.2007 Nippon Television Used as capillaroscopy system to examine the relationship between fear and coldness.
    11.7.2007 Nippon Television Introduced as the most up-do-date capillaroscopy system to check blood flow in microcirculation.
    20.12.2006 Nippon Television As capillaroscope to examine the improvement of blood flow following exercise.
    8.6.2006 TV TOKYO Introduced via "World Business Satellite" as the most up-to-date capillary scope to observe blood flow.

  • Specifications

    Camera Unit

    Model GOKO EV-80Z
    Image Signal NTSC composite video signal
    Electronic Shutter 1/60-1/100,000 second (Automatic)
    Magnification 100× to 410× (on 14-inch monitor)
    In focus with Attachment: 105× and 390×
    Lighting System Direct lighting by high luminosity LED
    Video Output Composite image output (pin jack 75 Ω)
    Power Source DV 5 V, supplied from exclusive adapter
    AC Adapter inlet pressure: AV 100-240 V
    Operating Temperature 0° C to +40° C
    Operating Humidity 35%-60% RH
    Dimensions φ45 (external diameter) × 96 (length) mm (except protrusion, without Attachment)
    φ45 (external diameter) × 106 (length) mm (with Attachment)
    Weight 140 g (without Attachment), Attachment: 10 g
    Attachments 1.Focus cap
    2.AC Adapter
    3.Protection cap
    4.Anti-vibration attachment for observing nailfold capillaries
    5. Composite extension cable for the camera unit
    Location of manufacture Japan

    Stand Unit

    Model ST-600Z
    Dimensions Base unit: φ120 mm, camera holder unit: φ58 mm, height: 72.5 mm
    Range of the movement of the Stage Unit 10 mm in a crosswise direction
    Range of the movement of the Camera Holder Unit 10 mm vertically
    Overall height with the Camera Unit 132 mm, except protrusion
    Weight 250 g
    Location of Manufacture Japan

    * The GOKO Bscan-Z is not a medical device.
    * Bscan-Z is a registered trademark of GOKO Imaging Devices Co., Ltd.

    Specifications, contents, and appearance of the products are subject to change without prior notice.