National Geographic - Da Vinci's Inventions - Ballista

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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 1 arrow 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.
AN INCREDIBLE GIFT! This high-quality model is fun to build and even more fun to use! It makes an amazing gift and is a fantastic STEM-based activity.
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

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