Roller Hand Exercise Ball Stress Relaxation Therapy Handball

Features: 1. Strong and durable. 2. Can help blood circulation, enhance immunity of human body, improve sleep and metabolism. 3. Two or more exercise balls are rotated repetitively in the hand to improve manual dexterity and strength. 4. Suitable for home use, as a decor or a gift for your families or your friends. Description: Item type: exercising ball Material: iron Size: approx. 38mm (with box) How to Use: When exercising, put two balls in your hand, relying on five fingers flexion and extension, so that the two balls circled with each other, the rotation direction of Shun, inverse of the points, so that all the joints in the hand are in motion. With the hand flexion and extension, exhibition income, front wall muscles can have a rhythm of contraction and relaxation. Package Included: 2 x exercising ball 1 x box (the color of box will be sent randomly.) Note: Please allow slight deviation for the manual measurement data. More Details: