Improves finger strength and dexterity Designed for people with arthritis, partial paralysis, Multiple Sclerosis, CVA, spinal cord injuries or people recovering from hand surgery Clinically tested therapeutic hand exerciser helps users improve strength, dexterity and range of motion using isometric and resistive movements while the hand is positioned for optimal functioning. Finger joints can be exercised individually or together. To reduce the pain some people may experience due to stretching, the exercises can be done with the hands and the Hand Gym Exercise Unit immersed in warm water. Measures 5 1/2 x 6 1/2 x 7 1/2 (14 x 17 x 19 cm) and weighs 12 oz. (.34 kg). Instruction booklet with illustrations included. Replacement Kit includes five 1/4 (.64 cm) rods with caps, two large foam cushions, six small foam cushions, two rubber bands (made of pure natural rubber).