Perfect for rehabilitation: Perfect training handle for carpal tunnel, rheumatoid arthritis, arthritis, tennis elbow, tendonitis and for people recovering from wrist fracture or tendon surgery. Relieve Anxiety & Strengthen Grip - These finger extenders feature 3 resistance levels in 3 colors. They help you concentrate, train for rehabilitation and train your fingers and hands. Safe and odorless material - Environmentally friendly silicone products, soft, no cracks and long lasting, no skin irritant. Cleans up simply with soap and water. Contents: 12 lbs, 10 lbs and 7 lbs of finger strength training and 30 lbs, 40 lbs and 50 lbs of grip rings. Start with a low level and build your strength as you progress to more difficult levels. Ergonomic design for all hands - The hand and finger expanders are ergonomically designed and fit well on all hand sizes . Comes with a carry bag, for easy storage and you can take it to your gym, office or anywhere else.