Item Type: Grip Ball Material: PU Package List 1 x Grip Ball 1Rehealthy Training: This grip ball provides effective finger strength recovery training for old people after stroke to help improve hand function. 2Ergonomic Design: This hand exercise ball features ergonomic design that offers comfortable grip and reduces hand fatigue, better adapt to the training needs of the elderly. 3Multi Function: This hand grip strength trainer can not only train hand strength, but also increase wrist and forearm strength and improve overall upper limb function. 4High Elasticity: This squeeze stress ball is made of reliable PU material which ensures high elasticity and high safety, strong, durable and safe. 5Light and Portable: This hand strengthener ball is lightweight and portable, you can bring them wherever you want in your bag and backpack.