Health professionals in physical education, corporate fitness and sports medicine have made the Lafayette Hand Dynamometer their grip test standard because it is accurate, repeatable and durable. Its custom-twisted spring can easily withstand accidental dropping without affecting its accuracy. Also, during a grip test, the spring compresses, providing the handle with life-like dynamic motion. This hand dynamometer features a dual pointer system to retain the maximum effort and 4 cm of handle adjustment for the most comfortable fit. The testing range on a dual scale is 0 to 100 kilograms / 0 to 220 pounds. Includes carrying case and norms for ages 5 through adult.