Leonardo da Vinci Helicopter Science Kit, 19 Pieces, Ages 14 and Older

Leonardo da Vinci's prolific Aerial Screw drawing, from the late fifteenth-century, remains one of his most iconic images and an invention that was way ahead of its time. This working re-creation of Leonardo da Vinci's 15th Century Aerial Screw Helicopter is easy to assemble by most beginners in less than two hours. Learn the mechanics behind the bevel gear design as you piece together this functioning model.

• - 19-piece model set
• - Includes glue, display stand, and instructions
• - Made from natural, untreated wood
• - Completed size is 15 x 9 x 9 inches
• - For ages 14 and older

Aside from peak seasons, most orders will ship within 2-3 business days and tracking is provided via email when the order is given to the carrier.  Delivery usually takes an additional 3-4 business days, and some locations can take longer for the carrier to complete delivery.

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If you are unsatisfied with your purchase, you may return your order in-store or online within 90 days of the purchase with receipt.  All merchandise must be in the same, saleable condition as it was when you received it.

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