Humanized design: compact and , easy to grip and control, very suitable suitable for exercising hand muscles, finger and wrist strength Elastic and reliable: the finger exerciser is made of quality silicone, soft and reliable, strong and sturdy, with nice elasticity and flexibility, not easy to break or fade, applicable suitable for most people, you can use it suitable for hand therapy at different places, relieving wrist and finger fatigue Wide range of users: the hand strengthener relieve wrist bands are suitable suitable for people of different ages, and applicable suitable for rock climbers, tennis players, golf players, baseball players, guitars, pianists, drummers and more, helping people exercise hand muscles, relieve hand fatigue and enhance finger flexibility Easy operation: The hand strengtheners are easy to use suitable for both beginners and experienced people. You just need to put the bracelet on your wrist, and insert your fingers into the rings, then you are ready to start exercising. It's time-saving and convenient, and you can exercise , office or gym. Material: Silicone colour: Black Package Contents: 1 x Hand Grip Strengthener Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.