The new Heavyhands® integrated exercise system provides endurance, strength and flexibility in every workout! Heavyhands® provides 90 minutes of exercise benefits in just 30 minutes. Heavyhands® adjustable hand weights allow you to burn more fat and build more lean muscle. This strapped hand weight is not only the most comfortable, but the only strapped hand weight system that allows you to adjust the weights of your handles by adding on additional weights. Each handle weighs 1 lb.