DescriptionThis product is a finger strength trainer, made of TPR silicone material, high-quality and durable. It can fix your four fingers and help massage your hands. A good helper for increasing your grip strength. Suitable for strength recovery and strengthening. Choose one for you.Features- Color: Blue. - Material: TPR silicone. - Size: Approx. 12.00X10.00X8.00cm/4.72X3.93X3.14in. - Made of high-quality TPR silicone material, durable and practical for long-lasting use. - Multi-functional and versatile fitness equipment, can be used as a hand strengthening grip, a hand massage ball, a hand and finger exerciser, a strength recovery device, etc. - Four-finger design, better fix the fingers and prevent slipping. - Bump design for partial massage and muscle relaxation. - Wash the whole body with water to avoid stickiness.