DescriptionThis product is a finger strength trainer, made of elastic PU and 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: As shown. - Material: Elastic PU ball, silicone ball sleeve. - Size: Approx. 10.00X9.00X7.00cm/ 3.93X3.54X2.75inch . - Made of high-quality PU and 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 and finger exerciser, a strength recovery device, etc. - Five-finger design, better fix the fingers and prevent slipping. - Convenient for users to grasp, finger strength training, ball will not fall off. - Easy to wear and clean, keep clean by regular washing, durable for long time to use.