The Chuckit!¬Æ Super Crunch Ball combines classic Chuckit! balls with a crackling; crunchy sound your dog will love! Designed to satisfy your dog's instinctual curiosity for sounds; the Super Crunch Ball has a patented crackle that is safely contained inside the ball and will not break down with use. Made with durable TPR; these Chuckit! Crunch Fetch Balls have a 2.5" diameter and are compatible with medium Chuckit! launchers.PRODUCT NOTE: For supervised play only. Know your dog and choose the appropriate size and type of toy to prevent choking or other harm. Inspect this toy regularly; if the toy is damaged or if parts become separated; remove toy and parts as injury may result. Not a child's toy.