Hand therapy exercise is designed to strengthen your forearm muscle, with a higher range of motion and increased flexibility of fingers. Hand therapists say that hand therapy exercise is essential and must start from the early age. Otherwise, people might suffer from weak hands with poor grasping abilities. Basically, hand therapy exercise helps you to maintain and increase grip strength and longevity. There are two types of hand therapy exercises available; One is with a grip strengthening tool & second is without a grip strengthening tool. Both have their importance and benefits as well.