Answer:
Skinfold calipers
Explanation:
the official definition of skinfold calipers is: a pair of calipers used to form and measure the thickness of skinfolds in order to estimate the amount of body fat.
Skinfold measurement is a technique to estimate how much fat is on the body. It involves using a device called a caliper to lightly pinch the skin and underlying fat in several places. This quick and simple method of estimating body fat requires a high level of skill to get accurate results.