Keep your fingers , forearms , and hands stronger wile easing stiff joint pain . Use the exerciser to achieve variable resistance training and customize for individual needs and goals . Improves your grip and finger strength , which benefits rheumatoid arthritis , rock climbing , Crossfit , carpal tunnel rehabilitation , golf , violin , tendonitis , handball , guitar , piano , surgery recovery , shooting , tennis , and gymnastics .
Makes a great hand therapy device for seniors , to provide physiotherapy and therapeutic rehab to find relief from a life time of knuckle use . For physical therapy and stroke patients , the different balls are used daily to restore range of motion . Also makes a perfect set of fidget balls , providing sensory input for children with ADHD , hyperactive kids , and autism , to improve focus and concentration.