Accurate, reliable and easy to use. Measures your own body fat easily and accurately. Small and convenient to carry around and you can use it anywhere. Helps monitor fat loss or gain. Doctors, personal trainers and nutritionists recommend the periodic measurement of body fat for maintaining health status. Specification: dimensions: approx. 6.54 inch x 3.94 inch (16.6 cm x 10 cm). Colors: Multicolour, Package includes: 1 x fat tester caliper. Note: suggested use, pressing the button in the center and pull the end of the tape around the body part you wish to measure. Lock the rod at the end of the tape into the circular slot. Press the button in the center and let the tape retract to a snug fit. Read and record your measurement on the tape to see the size of that body part.