Come and see our amazing products. Made of thick thermoplastic rubber (TPR) outer layer with small beadies inside. Material is pliable, durable, stretchable, and tear-resistant with no odor. It has a small amount of water inside and a small layer of powder to make it not sticky.There are no harmful chemicals added. 12 pieces stress balls in different colors, these are fun ways to teach kids colors.They are cute and soft squeeze balls that measures 2.36 inches. These sticky wall balls provide hours of distraction and entertainment for kids. Pls confirm with us about the packing info, stock color and exact production time before placing your order.