NATIONAL GEOGRAPHIC DA VINCI’S INVENTIONS BOMBARD

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Description

Build Your Own Working, Wooden Desktop Model. Each model is fully functional, designed with interlocking parts and a reliable trigger, making it the perfect STEM school project or a fun way to take office warfare to the next level. EVERYTHING YOU NEED to build each model in 1-3 hours: laser-cut wooden pieces, rubber bands, sandpaper and clear, simple instructions. No special tools needed; great for kids and adults.

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