It throws tennis balls more than 12 meters away! Designed to encourage your dog’s movement It helps to improve the interaction between you and your four-legged friend. It can store 2 balls at a time. Includes: 2 special balls How does it work? 1. Pull the spring. The more you pull the spring, the more powerful the launch will be 2. Insert the ball 3. Press the trigger! • Great fun for your dog, minimum effort for you • Lightweight and easy to carry