Designed for the most demanding use, this is no 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 value of the Ultra Ball is easily recognized by dog owners.Durable natural rubber ballEasy to cleanChuckit! CompatiblePerfect for exercising your dog. Use it in the park, in your backyard, or anywhere there is plenty of room.