NATIONAL GEOGRAPHIC Da Vinci's DIY Science & Engineering Construction Kit- Build Your Own Wooden Model of The Original Catapult

Build a tabletop catapult! Leonardo da Vinci improved this powerful machine, a medieval artillery weapon, in the 15th century. Send projectiles up to 15 feet! Each model is fully functional; the kit comes with 8 projectiles plus 6 paper targets. Everything you need to assemble each model in 1-3 hours: laser-cut wooden components, rubber bands, sandpaper and clear, simple instructions. No special tools necessary. Great for kids and adults, This kit is the perfect STEM school project or an office game. 100% satisfaction guaranteed. For 129 years, NATIONAL GEOGRAPHIC has been a brand you can trust for scientific and educational excellence.