Feature: 1. The environmental protection PVC plastic ruler can pass the European and American ROHS and 6P (phthalate‑free) environmental protection tests. 2. Does not contain any harmful chemical ingredients, non‑toxic and tasteless. 3. It can be used to measure the chest circumference, waist circumference, leg circumference, as well as the baby's head circumference and height. 4. The tape can be automatically retracted, which is convenient for use and storage. 5. This product is resistant to high temperature, corrosion, acid and alkali. Specification: Condition:100% Brand New Item Type: Body Fat TesterScope of Application: Measuring head circumference, waist circumference, hip circumference, leg circumference, arm circumference. BMI (Body Mass Index) is the body health index, which is closely related to the total body fat and mainly reflects the body's overweight and obesity. The world standard for obesity is: BMI is within the normal range from 18.5 to 24.9, BMI greater than 25 is overweight, and BMI greater than 30 is obesity. The BMI health ruler is able to quickly calculate your body health index, saving the complicated mathematical calculation process, just correspond your height and weight values according to the compass library instructions, and the arrowhead points to your health index value. The operation is simple and convenient, suitable for all ages!BMI Tape Measure: Material: Plastic, PVC Tape Measure Size: Approx. 150cm x 7mm/59.1 x 0.3in Shell Size: Approx. 6 x 5.5cm/2.3 x 2.2in Color: Silver shell, four-color tape, black scale Tape Measure Scale: cm on both sides, one side for women, the other side for menFat Clip: Material: ABS Size: Approx. 16.8 x 10 x 0.6cm/6.6 x 3.9 x 0.2in Color: Black Caliper, White Printing Tape Measure Scale: One side mm + inch Waist Tape Measure : Material: Plastic , PVC Tape Measure Size: Approx.150cm x 13.5mm/59 x 0.5in Shell Size: Approx. 9 x 6 x 2cm/0.4 x 0.2 x 0.1in Color: White shell, white tape, black scale Tape Measure Scale: cm on one side and inch on the other side. Package List: 1 x Fat Clip1 x BMI Tape Measure1 x Waist Tape Measure1 x Fat Clip Instructions Note: The standard on the ruler is just for reference, and the specific judgment shall be based on the standard established by the corresponding country. It is normal for the waist measurement to have a value other than "1", because when measuring the waist, the arc of the shell is also part of the waist.