Perfect for back garden ball or sprints down the hallway, it is an automatic, interactive fetch system. Designed for dogs over 4.6 kilos who love to fetch, this water-resistant toy keeps your pup happy while giving your arm a break. Adjust dial to launch 8 - 30 feet with nine distance settings and single angle settings. The ball launcher works best with standard size tennis balls and holds up to three balls at a time. By creating safe, stimulating games, it helps keep your pet healthy, safe and happy.