Description Hand grip strengtheners are constructed with a premium material that is odorless and safe to grip. The nonslip rings are also tear and crack resistant for long-term use. Perfectly sized for grip strength training for both men and women, young, old etc. Features -Material: Silicone -Size: 8.00X8.00X2.00cm 3.14X3.14X0.79inch - hand gripper are durable and safe, you could keep it for a long time. - Our hand gripper own the strong wear, tear and break resistance ability. - Good performance and practical hand gripper is always provided by us. - Creative and generous product appearance and practical design. - The hand gripper is light and compact, easy to use and portable to carry on. Our hand gripper is high quality, high performance but price is more reasonable. Also can be a warming gift for your friends, they will like it. Easy to grip design, it is portable and very practical. Applicable to a variety of scenes, such as stress release gripper, muscle strengthening training tool etc. Our hand gripper could last for a long term, durable enough.