DFX1005 Features: * Gyro wrist and forearm exerciser * Tour grip will help increase your range and accuracy also aiding in the rehabilitation, tennis elbow, arthritis and tendonitis * Strengthen arms, wrists, forearms, triceps and biceps * Training CD * Starter cord * Power dock compatible * Speeds up to 13000 RPM * Up to 40 lbs of torque Assembly Instructions: * No assembly required Dimensions: * Dimensions: 2.5"" H x 2.5"" W x 7.5"" D