D-SHAPED DESIGNThis grip is different from other products, it is D-shaped, and the design is more ergonomic. Using this product, the fingers and palm can be more closely fitted to the gripper, and the five fingers can exert a more balanced force. 3 LEVELS MEETING MULTIPLE NEEDSThis gripper set contains 30lb (light gray), 40lb (dark gray), 50lb (black) 3 different levels of grip ring. You can choose the right grip circle according to your actual situation, or you can practice from the smallest level. As your strength increases, you will gradually increase the difficulty of training. GREAT FOR YOUIt is suitable for the elderly and patients suffering from arthritis, carpal tunnel syndrome, tendinitis, to help you restore your ideal state. It is also suitable for pianists, guitarists and other musicians, as well as office workers who often hit the keyboard. It helps relieve sore fingers and improve finger agility. At the same time, it is also a favorite of rock climbing, fitness, tennis, baseball and boxers, which can help them improve the strength of their fingers. PORTABLE,DURABLE&FLEXIBLEThe product is made of silicone, which can be cleaned with water, durable and safe, and because of its small size and weight, it can be carried with you for exercise at any time. BUY WITH CONFIDENCEWe insist on providing high-quality products. If you find a defect or have any questions about the product, please contact us immediately to obtain efficient customer service.