Tourna DOC SqueezIt (3x)

Just squeeze slowly with increasing pressure. This engages 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. Recommended for arthritis sufferers.
Three Resistance Levels for Squeezeits for Tennis Elbow Relief. * 3 Different Tension levels * Squeeze ball to Strengthen Hand and Fingers * Rehabilitation for wrist, hand, tennis elbow and forearm