Innovative disc that bounces and floats like a tennis ball, but also rolls on the ground with the greatest of ease so your dog can chase it and fetch it back.Rubber wheel for dogs bounces & floats for unlimited, creative exercise for your dog & youRoll wheel to unleash your dog’s chasing and herding actionOpen interior makes pick-up easy for dogs of all sizes.Durable rubber outside is easy on your pet’s mouth.Inside is bright, tough canvas-style nylon with double-sewn seams.Foam core ensures added buoyancy.Satisfies a dog’s instincts to chase and herd.