Gravitrax Catapult Expansion Set\nCheck out the awe-inspiring Gravitrax Catapult Expansion Set! This add-on brings gravity-defying excitement to your Gravitrax Starter Set, guaranteeing even more thrilling action on the ball racetrack.\nThe Gravitrax Catapult is known for its superior quality, providing long-lasting fun. Its more than just a play set; its a gateway to endless exploration of physics for your child.\nThis set includes one catapult action block, four balls, and ten spare rubber bands, promising a wide array of configurations for your racetrack. Let the fun experiments begin!