Description These are some silicone hand grip rings, including different strength types. It fits for most hand size, easy and comfortable to use. Supple and washable while providing certain convenient design for easier grasp. It is the best choice for you. Features -Color:Green, Blue, Orange, Black -Material:Silicone -Size:7.00X7.00X1.80cm/2.75X2.75X0.71in -Note: The Resistance Power is 30lb(Green), 40lb(Blue), 50lb(Orange), 60lb(Black). -Our hand grip rings are high-class, high performance, but price is more reasonable. -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 palm's size, 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. -Our hand gripper made of good material thus could last for a long term, durable enough. Our hand grip rings are high-class, high performance, but price is more reasonable. 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 palm's size, 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. Our hand gripper made of good material thus could last for a long term, durable enough.