The Digi-Extend® is a unique therapy device that can isolate the extension of all five fingers and individual finger joints. The product strengthens the intrinsic and extrinsic muscle groups to maximize extensor tendon gliding, joint motion, coordination, and muscle function in the hand and forearm. Patients can choose between 5 resistance levels that are easily changeable. This way, you can vary the hand positions for specific exercises to help maximize your exercise goals and prevent injury.