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)

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About This BUILD THREE REMARKABLE MACHINES - a Ballista (an enormous crossbow), a Bombard (an early form of the cannon) and a mighty Catapult. SEND PROJECTILES UP TO 15 FEET - Each model is fully functional; the kit comes with 15 projectiles plus 6 paper targets. EVERYTHING YOU NEED - Assemble each model in 1-3 hours: laser-cut wooden components, rubber bands, sandpaper and clear, simple instructions. No special tools necessary. AN INCREDIBLE GIFT! These high-quality models are fun to build and even more fun to use! They make an amazing gift and are a fantastic STEM-based activity. HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is less than stellar, let us know and we'll make things right! Show more