DescriptionHand Exercise Ball build strength the fingers, hands, wrist and forearms while reducing stiffness and joint pain by stimulating blood circulation in the forearm and hand. Perfect for athletes, musicians, office staff and students, as well as those with arthritis, carpal tunnel and rehabilitation needs.Features-Color:Yellow -Material:Latex -Size:10.00X7.80X5.60cm/3.93X3.07X2.20in -Useful for physical and occupational relax, the balls also provide a sensory outlet for those with autism. -Exercise and strengthen hands, fingers, wrists strength so that relieve stress and muscle tension. -Hold the Strengthening Balls tightly to help you decompress after long hours of work or study. -Finger Grip Ball is very easy to carry, easy to use outdoors, easy to use, and simple to operate. -The creative design will give you a wonderful experience and bring you a good mood. It also can bring much convenience to you.