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- BUILD THREE REMARKABLE MACHINES - a Ballista (an enormous crossbow), a Bombard (an early form of the cannon) and a mighty Catapult.
- EVERYTHING YOU NEED - Assemble each model in 1-3 hours: laser-cut wooden components, rubber bands, sandpaper and clear, simple instructions. No special tools necessary.
- AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!
