A Skinfold Caliper is a device which measures the thickness of a fold of skin with
its underlying layer of fat. By doing this at key locations, shown by research to be
representative of the total amount of fat on the body, it is possible to estimate
the total percent bodyfat of a person.

Correct body
weight varies with each individual. We all have different amounts of bone, organ and
muscle. Few changes can be made in those areas. Muscle weight will increase as you
become physically fit. However, reducing muscle weight in order to achieve the
"thin" look can be dangerous.
An effective weight control plan should be designed to bring body fat to acceptable
levels. Body fat measurement is the best way to determine your ideal weight.