Description Grip Strengthen Ball, made of PU material, and touch comfortable, it is very easy to carry. Exercise and strengthen hands, fingers, wrists strength so that relieve muscle tension from computer work. Finger separation design makes it more lovely. Features -Color:Pink, green -Material:PU -Size:8.00X8.00X3.00cm/3.14X3.14X1.18in -This Handgrip Strengthening Squeeze Ball is perfect for all adults and teens who overuse their hands, thus causing them to feel tired. -It can reduce hand soreness very well and stimulate the tactile nerve of the hand. It makes your hands feel very stress-free. -The undulating finger separation design helps the fingers to be placed in the proper position of the pressure ball, which plays the role of finger separation and prevents bed pain. -At the same time, the exercise ball is suitable for different fingers, you can use it easily. -Hand strength and exercise ball builds strength in the fingers, hands, wrist and forearms.Packing list4 x Hand Exercise Balls