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Elastic resistance strength exercisers designed to provide elastic resistance to muscular contraction in the hands and/or fingers. Elastic resistance increases as the elastic is stretched. These exercisers are usually made of elastic, rubber, or metal springs. Dedicated exercisers are available in the form of rubber balls, elastic rings, elastic tubes, or elastic webs. The users squeeze these exercisers and/or bend their fingers against the elastic resistance. Hand/finger/wrist exercisers are intended to improve the strength of the muscles in the hands, fingers, wrists, and forearms; improve the flexibility of the muscles and the joints; and increase muscle mass.
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