Come and see our amazing products. The stress ball is made of tpr, this material is eco-friendly. Vent stress, anxiety, anger or use to concentrate and get back to the task at hand; squeeze these stress relief fidget toys and see them change colors from pink to purple, yellow to orange, and blue to green. These squishy balls can be used for wrist, hand, and finger exercises; each anti anxiety ball is filled with nontoxic gel and measures 4 inches in diameter; recommended for ages 8+ children. Pls confirm with us about the packing info, stock color and exact production time before placing your order.