Come and Check Our Promo Solutions.Made of rubber. Noctilucent bouncing ball. Non-toxic and environmentally friendly, high quality, lightweight, bright color, good elasticity, high strength. Perfect for stress relieving, and playing. Indoors or outdoors, in the backyard or on the playground, these bouncy playthings keep kids nice and occupied. Applies to all persons. Floating on water option. Recommend hand wash. Complies with ASTM. 2''D. Pls check inventory and detailed info with us before placing your orders.