Kompact9 Retractable Ball Launcher. The Ball Launcher reimagined.The Kompact9 Retractable Ball Launcher is a lightweight, easy-to-use retractable dog ball thrower made from recycled plastic. Environmentally engineered, it has been purposefully designed to minimize the impact on the environment.Significantly smaller, the Kompact9 Retractable Ball Launcher is about 70% smaller than standard dog ball throwers (when retracted). Its unique cup design enables you to throw the ball with ease. Seriously simple, the dog ball launcher is incredibly easy to use and store - includes a hygienic cover that eliminates having to handle any irritating and unwanted dog slobber!