Fat Measure Body-Easy to Use: Simply move the slide rule to the right, pinch your skin fold, squeeze measuring jaws until the ball socket clicks in place and check your results. This body fat measuring tool and body measuring tape is small, light, discrete, fits in your gym bag Fat Tester Skinfold-Stable: Stable holder and trigger can give you a comfortable touch when using. Flexible spring design, so that the caliper can be expended or contracted for a better measurement. Body Caliper Body-Precise Measurement: Caliper can be used for measuring 0-80mm ranges of body fat easily and accurately. Skin fold thickness scale is designed for readable and correct measurement. Made of ABS material, which is harmless to your skin. Fat Caliper Body-Body Fat Monitor: Helping monitor your fat condition to keep healthy. Doctors, personal trainers, and nutritionists recommend the periodic measurement of body fat for maintaining health status. Caliper Body Measuring-Wide Application: The caliper measuring tool is designed for applying to skinfold of abdomen, thigh, waist, bicpes, chest (for men) and underarm (for women) to obtain an overall measurement and relative scientific result. Suitable for dieters, bodybuilders and people who need always keep an eye on their body fat percentage to use by their own in the gym or at home.