Multiple UsageHand grip can be used for various positions of hand easily,such as fingers strength training ,forearm training , back hand and palm massage. Well quality of materialsThis stress ball is made by TPR with firm fingers holes,can be squeezed and pressed as often as possible, harmless to fingers and palm. Light weight and water-proofHand grips for strength is light in weight and moderate in size, easy being carried in backpack for men or handbag for girls and women. Safety and quiet while exercisingThis hand grip is one-shape design with TPR materials which is safety. No worries about spring or steel to hurt hand. Good gift This hand strengthener can be send as a present to boys and girls, fathers and moms, boyfriend and girl friends, husband and wife, the younger and the elders. Our brand has an ideal to spread and provide exercise equipment in a smart way. This hand therapy grip balls is a good and easy usage hand strength training equipment with durable quality and cute design. You will be surprised when you receive this stress ball that it meets all your needs if you are fancy and interest in the workout for home or office,etc. This is also an exersize equipment for stress release.An anther great option of gym accessories for men and women. Also, this squeeze ball can be used to ease the anxiety and stress in head and body. Hand grips sizing: 12 cm6 cm9 cm Weight70 g The four fingers holes,which is firmly connected to stress ball body which make it not easy to slip when you squeeze it. Whats more,its well matching for various sizes of fingers. If you want to have hand grip for strength, exercising for rock climbing holds,triceps and brachii building. Please choose this as your choice for launching a smart workout.