FITNESS & SPORT ENTHUSIASTS - Strengthen your wrists, improve the dexterity of your fingers, increase the strength your hands while reducing fatigue. Help balance your grip muscles and your expanding muscles. 20/30 LBS for young girls and boys use,40/50 LBS for normal life hand strength exercise use, 70/80 LBS for professional hercules or athletes use REHABILITATION & PREVENTION - Great for rheumatoid arthritis, carpal tunnel, tendinitis, tennis elbow and are on the way to recover from a fractured or broken wrist, or when you type, text or any other activities which use your gripping muscles. It'sa very good gift for your health no matter you are outdoor worker or office staff Color: pink&black&blue Quantity: 3 pcs 1. Due to different measurement methods, there will be a deviation of 1-3 cm for the goods, please make sure you have no problem before ordering. 2. Due to different monitors and lights, the pictures may not reflect the actual color of the goods, thank you very much for your understanding. 3. Only the above package contents, excluding other products Products from NIUNIU's store