by Noted Europe
Buy new: $25.99
7 used & new from $19.02
(Visit the Best Sellers in Lab & Scientific Products list for authoritative information on this product's current rank.)
Just add glue, scissors and an appreciation for the physics and art behind these medieval siege engines. High-quality models hurl a small ball more than 15 feet in 1 throw, with adjustable pads that change the trajectory angle and encourage experimentation for greater accuracy. Pre-cut, pre-drilled solid wood pieces are easy to assemble; models can be build in about 1 to 2 hours.

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