Suitable for Athletes and Musicians: the package includes 1 piece of finger strengthener, which is designed to the finger strength and flexibility, can be a necessary assistant for athletes and musicians, such as rock climbers, tennis players, bass players, guitarists, pianists and more Reduce Hand Fatigue: the guitar finger trainer is suitable for office workers, students, teachers and other people who are prone to hand fatigue, helping reduce the hand stiffness, and finger function and movement Proper Size to Use: this finger gripper strength trainer measures about 12 x 8.5 x 6cm, and the hook and loop fastener can you with a comfortable fit, no need to worry about wrist circumference, so you can share it with your and exercise Use with : the guitar finger stretcher is mainly made of quality silicone , with a elasticity, stable and to use, hard to tear, or deform, easy to clean, can be and applied for a long time you can not only enhance the strength of the , forearms, and wrists, also isolate and the flexibility of each finger separately, convenient and practical; the right buying color: red : Silicone + + Polyester Package Contents: 1 x finger exerciser 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.