The Hand Exercise Ball is great for athletes and common people to increase finger, hand and forearm strength. Ergonomically designed, it is made with and durable material. Perfect hand workout that can be done in your home or office and will build your hand muscle and grip strength. Exercise and strengthen hands, fingers, wrists strength so that relieve stress and muscle tension. Features -Color:Red -Material:PVC -Size:8.00X7.00X4.00cm/3.14X2.75X1.57in -Hand Exercise Ball strengthen the fingers, hands, wrists and forearms while reducing stiffness and by blood circulation to the forearms and hands. -Increases flexibility, improves strength, prevents stiffness, and relieves . Reduce stress and relieve muscle tension in the fingers, hands and forearms. -Perfect for athletes, musicians, office workers and students, as well as those with carpal tunnel and rehabilitation needs. Squeeze and get stronger. -Improves flexibility, reduces stiffness and relieves finger and hand pain caused by carpal. -Made of good PVC material, strong and safe. It doesn't wear out over time. Package list: 3 x Hand Exercise Ball