Features： 1、Has no harmful chemicals, safe to use, high temperature resistance, corrosion resistance, acid and alkali resistance. 2、Body fat caliper suitable for abdomen, front of thighs, waist, biceps measure, accurate measurement and simple operation. 3、BMI Measuring tape suitable for arms, chest, waist, calf, thigh, buttocks and so on. 4、Fat measuring tool and body measuring tape is small, light, that can easily fit in your gym bag. 5、Track your weight loss progress using the body measurement tape by simply wrapping around your body part and charting your progress. Specification： Item Type: Body Fat Caliper Set Material: ABS Plastic + PVC Tape Measurement Method of Fat Caliper: 1. Abdomen, front thighs, waist and biceps should be selected as measurement points. For men, chest should be added and for women, armpit should be added. 2. Lift the skinfold with your thumb and forefinger perpendicular to the long axle of the skin 3. Contain wrinkles when measuring 4. When measuring, let the body fat claw be perpendicular to the fold. Slowly release the pressure on your body fat caliper 1cm from your thumb and forefinger. Scope of BMI Tape: BMI Tape, Waist Measure, Measurement, Fitness, Weight Loss Length of Tape: Approx. 150cm / 59.1in Applicable Parts: Arms, chest, waist, calf, thigh, buttocks and so on Usage of BMI Tape: 1. Press the button in the middle to retract the tape measure If you're on a diet, help measure your body shape and check your progress Just pull the tape measure and the results will be locked in place 2. Button retract and lock function to ensure comfortable measurement BMI (called Body Mass Index) is calculated by dividing weight in kilograms divided by height in meters squared.It is mainly used for statistics. When it is necessary to compare and analyze the healthy effects of a person's weight on people of different heights, BMI is a neutral and reliable index, which is commonly used in the world to measure the degree of fatness and healthy of a person. BMI is calculated from your height and weight. BMI is a classification method for assessing the degree of obesity recognized in the world. The World Health Organization (WHO) also uses BMI to define obesity or overweight. BMI is a measure closely related to total body fat, which takes into account both weight and height.BMI is simple, practical, and can reflect the overall overweight and obesity.The tests were more accurate in identifying healthy risks associated with being overweight than weight alone. Package List： 1 x Fat Caliper 1 x BMI Tape 1 x Manual