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BUILD A TABLETOP BALLISTA based on ancient designs! Then learn about Leonardo da Vinci’s proposed improvements to this ultimate medieval artillery weapon.
SEND PROJECTILES UP TO 15 FEET! Each model is fully functional; the kit comes with 15 projectiles plus 18 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.
SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you