Item Type: Hand Grip Strengthener Ring Material: Silicone Rubber Style: Adult Gray And Blue 10LB Package List 1 x Hand Grip Strengthener Ring 1STRENGTHEN YOUR FINGERS: Finger strength training ring can effectively build finger strength, improve finger dexterity and sensitivity. 2SILICONE RUBBER: Hand grip strengthener ring is made of food grade silicone rubber, safe and non toxic, meets for amazon and American health standards. 3COMFORTABLE GRIP: Grip strength trainer ring is olive shaped for a more ergonomic, comfortable grip and to stabilize finger muscles. 4MULTIFUNCTIONAL: Finger exercise ring is suitable for a variety of scenarios such as rehabilitation, finger arthritis prevention and treatment, guitar playing, physical training and more. 5EASY TO CARRY: Hand grip strengthener is compact and easy to carry, you can do finger training anytime and anywhere to improve finger strength and dexterity.