Material: The body measurement ruler is made of high quality plastic, strong and durable, small and light, easy to store and carry. Special scale: The soft ruler scale does not start at 0, because the plastic case also takes 5cm of the length, so body measurements are correct. Function: Retractable black tape measure, self-locking, which retracts with the help of a button. It can measure many parts of the body such as chest, waist, hips, calves, thighs, arms, etc. Units of measurement: cm and inches. There are two scales on each side of the health tape measure, which makes it very easy to use. The length is 60 inches / 1.5 meters. Regulatory role: Use this personalized tape measure to regularly measure your waist or thigh circumference. It may alert you if you need to lose or gain weight.