Hand & Finger Exercise Perfect for training flexibility of fingers and palms against stiffness, rehabilitation training, exercising hand muscle and enhancing hand strength. Versatile Usages Squeeze, roll or press the ball to relieve tension and reduce stress. Perfect for Sports Enthusiasts Suitable for those people, who are rock-climbers, body-builders, computer-workers, badminton and ping-pong lovers, etc. Comfortable Texture It adopts medical-grade materials and textured surfaces, and gives a fantastic and comfortable feel to the touch. Compact Design Thanks to its compact body and light weight, it is convenient to carry around and you can relax your hand anywhere, anytime. We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 45 day guarantee. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase. Buying items online can be a daunting task, so we want you to realize that there is absolute ZERO risk in buying something and trying it out. If you don't like it, no hard feelings we'll make it right. We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance. Remember: Shipping usually takes 2-3 weeks read our Shipping for more details!