Give man’s best friend something bark about with the iFetch Too Interactive Ball Thrower for Large Dogs. Chucking standard sized tennis balls into the air, your big dog will love the automatic game of fetch. Powered by a built-in rechargeable battery, your dog can return the tennis ball and drop it into the machine only for it to be thrown again. With options for a 10, 25, or 40-foot throwing distance, any dog can get the exercise he needs.