ALLWAYUP - These egg-shaped hand exercise balls are designed to provide a comfortable and effective grip while boosting muscle strength and dexterity. Therapeutic balls are a non-sticky material that is safe, and non-toxic, making them ideal for relieving stress and anxiety. It can also be used to strengthen hands and improve finger mobility. The hand balls' texture helps improve circulation and reduce stress, making it ideal for those with arthritis or other conditions that affect the hands.