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---------- Highlights ---------- * Assembly set to bring alive Leonardo Da Vinci's innovative catapult design * Includes an illustrated manual for creating an accurate replica * Ideal for kids aged 9 & above Leonardo da Vinci improved upon the already-established catapult design when he introduced his own vision of the age-old launching device. This design uses a double leaf spring to produce a great deal of energy in order to propel stone projectiles or flammable materials over large distances. A hand crank on the side of the catapult was used to load the spring. The scientific genius of Leonardo da Vinci is brought to life through this articulated model. The inventions that inspired this snap-together replica is taken from the pages of da Vinci’s priceless and awe-inspiring s. All Models are made of plastic and require no special tools. Manuals are very educational and teach how these inventions have evolved into what they are today. Learn how Leonardo da Vinci improved the catapult design. From da Vinci's priceless and awe-inspiring s. Accurate model of da Vinci's innovative design. Requires no special tools. Fully illustrated instruction manual. Suggested Age: 9 Years Material: Plastic CPSC Choking Hazard Warnings: Choking_hazard_small_parts Grade Level: 3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade, 9th Grade, 10th Grade, 11th Grade, 12th Grade Number of Players: 1 or More Players Educational Focus: Science, Creative Thinking Power Source: Non-powered Warranty: 1 year limited warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869 TCIN: 51496322 UPC: 769188610097 Item Number (DPCI): 087-15-0238 If the item details above aren’t accurate or complete, we want to know about it. Report incorrect product info. ( # )