Description This hand exercise ring is through building 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. Features -Color:Blue -Material:Silicone -Size:7.80X7.80X2.20cm/3.07X3.07X0.86in -Our hand gripper ring is made of silicone material, and can be used for a long time. -Also, this hand gripping rings can be a warming gift for your friends, they will like it. It can be used to train grip and finger strength, make hand muscle strength exercise and fitness achieve a certain effect. -With round shaped design and compact, it is 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. -This round hand gripper made of silicone material thus could last for a long term. Our hand gripper ring is made of silicone material, and can be used for a long time. Also, this hand gripping rings can be a warming gift for your friends, they will like it. It can be used to train grip and finger strength, make hand muscle strength exercise and fitness achieve a certain effect. With round shaped design and compact, it is 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. This round hand gripper made of silicone material thus could last for a long term.