Learn about the incredible inventions of Leonardo Da Vinci by building them yourself with this kit from National Geographic! You'll build three remarkable machines — a ballista (an enormous crossbow), a bombard (an early form of the Cannon) and a mighty catapult — and use them to launch projectiles up to 15 feet at the included targets. Everything you need to assemble each model in is included: laser-cut wooden components, rubber bands, sandpaper and clear, simple instructions. Each model takes about 1 to 3 hours to build for hours of inventive fun!
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|Recommended Age||10 and up|
|Dimensions||10.0 Inches x 7.25 Inches x 2.0 Inches|