Designed for the most demanding use; the Chuckit!® Ultra Ball® is not your dog's ordinary ball. Simply put; this is the best ball for the game of fetch. Developed to have high bounce; high buoyancy; high visibility; and high durability. The Chuckit! Ultra Ball promises to outplay the ordinary. Can be used in the water and is designed specifically for the game of fetch. Features an extra-thick rubber core and quality material that floats. The bright color gives increased visibility and helps to prevent the ball from getting lost. Compatible with Chuckit! Launchers. Available in Small; Medium; Large; X-large; and XX-large in a one or two-pack.PRODUCT NOTE: Supervise play and 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 the toy and parts as injury may result. No dog toy is indestructible; and every dog interacts with their toys differently. Supervised play will go a long way to helping your dog's toys last longer.