DescriptionHand exercise rings build strength in the fingers, hands, wrist and forearms. Varied activities, including crushing, pinching and extensions work to improve the dexterity of both the fingers and hands. Perfect for athletes, musicians and physical therapy patients.Features-Material: Silicone-Size: 8.00X8.00X2.00cm3.14X3.14X0.79inch - Made of high grade and flexible material to ensure optimal exercise results. - Perfect for those who are looking for a comprehensive hand grip strengthener set. - Adopt of premium and smooth material, very safe and eco-friendly. - The grip ring is for injury rehabilitation, prevention of arthritis, carpal tunnel syndrome, trigger finger etc. - Improve hand and finger grip strength as well as dexterity for athletes.