The NERF Translucent Tennis Ball Blaster Dog Toy Set 40cm is a completely new way to play fetch, with its hand-held design, the blaster can be used anywhere and on any surface. Makes you always ready to give your dog the ultimate two-way maneuvering experience. It’s easy to use, just pick up the barrel and drop the tennis ball into place. Then just press the release button and watch as the barrel launches your dog’s favourite fetching tennis ball over 50 feet in the air. When your dog brings it back, keep your game alive by placing the barrel on top of the tennis ball and picking it up “hands-free”. No batteries are required.