Offering three resistance levels for tennis elbow relief. Engage muscles throughout your hand, wrist, elbow and arm. The gradual isokinetic exercise will improve performance in tennis, golf, basketball, and other sports. Also great for musicians, computer users, needle-work and recommended for arthritis sufferers.

• 3 Resistance Tensions (Heavy, Medium, Light)
• Progress as you strengthen
• To heal tennis elbow, you need both outward and squeezing strength