Finger exerciser can exercise your hand strength, grip strength, improve the flexibility and span of your fingers, enhance your endurance, and exercise the coordination of the left and right brains. The hand strengtheners provide you with three pressure levels including 21LB, 17LB, 13LB, you can hang the hook to the appropriate position for training according to your grip strength and exercise needs. The hand exerciser is made of quality environmentally friendly silicone material, soft and skin-friendly, safe and durable, strong elasticity, not easy to break and damage, not easy to deform, durable and easy to clean. DISCLAIMER- The color of the Product may vary as Sourced in Mixed Batches, the images are meant for Representational Purposes any slight changes in color due to photographic effects must not bother.