National Geographic Da Vinci Model Kit - Catapult Kit for Kids, 3D Puzzle Building Toy for Boys and Girls, Wood Building Kit for Kids, A Great STEM Project, Engineering Model Kit (Amazon Exclusive)

Discover Da Vinci’s Workshop with three of National Geographic’s best-selling da Vinci’s Invention Products. This kit includes 3 DIY building projects: Bombard, Catapult and Ballista. No special tools are required for you to build these three incredible inventions from Leonardo da Vinci. Everything is included in this kit: - Laser-Cut Wooden Components - Rubber Bands - Sandpaper - Clear, simple Instructions. National Geographic Toys is proud to provide a 100% satisfaction with all our products so that you can buy with confidence. About the National Geographic Society: With a mission to inspire people to care about the Planet, the 131-year-old National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations. National Geographic’s net proceeds support vital exploration, conservation, research, and education programs.