HiKeep Hand Exercise Balls, Physical Therapy Stress Relief Ball for Adults, Different Resistance Squeeze Balls - Set of 6

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.