Come and see our amazing products. Measuring 2.36", this hand therapy ball is made of a TPR core, water resistant Lycra, and sleek non-stick fabric, to feel comfortable in your hand. Every squeeze with our exercise ball will improve blood circulation and strengthen your grip, hands, fingers, and forearms. The ball can bounce and float on water, Great for games in water. If you are searching for 2.16'' stress balls with PMS color, contact us for more details. Pls confirm with us about the packing info, stock color and exact production time before placing your order