• Product List 5.5 x 4cm Hand stress ball x 6 (different resistance egg shape), storage bag x 1, instruction manual x 1, gift box x 1.
• Unrivaled Quality - Made of soft, easy to clean thermoplastic rubber. Lightweight, hypoallergenic, and reusable.
• Exercise Hands - Exercise muscular and finger flexibility, suitable for primary strength training.
• Reduce Stress - Squeeze, roll or press the ball to relieve tension.
• Rehabilitation Training Relax alleviation muscle pain and stiffness, promote blood cycle.