- Material:Plastic
- Taking measurements at back of upper arm
- Taking measurements at front of upper arm
- Taking measurements on back below shoulder blade
- Taking measurements on side of waist
- With the left thumb and forefinger pinch the skin effect
- Pinch from the basic layer of skin and fat.Not have to worry about muscles pinch effect
- With sebum caliper from pinch tedt,repeated three times,to remember the data,the use of averages
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