Exercise your Hand MusclesHand exerciser help improve your overall grip strength, relieve finger spasms, numbness, improve blood circulation, recover from injury or increase your finger strength. Stimulates the skin, exercises the fingers and strengthens the hand muscles. Relieve StressHand strengthener ball is easy to hold and train, easy to carry, can be squeezed at any time to reduce stress, helps to relax tense nerves in the hand and distract. Relieve the stress caused by daily life. High-Quality MaterialsHand therapy balls made of high-quality soft silicone material, soft and comfortable, strong tensile strength with toughness, anti-breakage. Durable, compact, flexible and easy to clean, easy to store. Grip ComfortFinger hole grip ball shape in line with the shape of the human palm, moderate size, non-slip handle, bump massage design, enhance the massage comfort. Can also tap the neck, shoulders, legs and other parts of the body, easy to exercise. Suitable for the CrowdHand exerciser grip strengthener is ideal for long time use of hand strength of office workers and athletes, the elderly with arthritis, carpal tunnel, tendonitis, fingers, thumbs, wrists, carpal tunnel, forearms and elbows condition of the late sports rehabilitation personnel.