Features: 1.The balls can strengthen your hands, forearms, fingers with simple exercises and relieve the pressures of daily life 2.Keep your hands, fingers, wrists and forearms stronger while easing stiff joint pain and increasing range of movement and dexterity. 3.Release daily stress for those sitting to work for long hours or with daily pressure.Suitable for all ages from teenager and above Specification: Weight:183g/0.43lb Material:TPE and silicone Color: Multicolour Quantity: 6PCS Package included: 3 X Three resistance levels hand therapy exercise balls 3 X Finger stretcher exerciser