For your furry friend, a fetching game from this AFP Dog Ball Launcher Thrower Automatic Tennis Throwing Machine is supposed to be an excellent form of exercise and entertainment. It is designed to shoot the tennis ball as far as 3m, 6m and 9m, which is flexible and practical for both older dogs and energetic puppies to interact with you and maintain agile and skilled in training. Measuring 21x26x27cm and weighing 2kg, this dog ball thrower is compact and portable for easy taking on the go. Furthermore, the automatic ball launcher comes with three tennis balls of 5cm in diameter. As to the power supply, the automatic ball thrower for dogs can work with either six pieces of batteries or the included AC adapter. Give your canine the chance to keep himself entertained for hours on end.