Build six sleek, functional toy models of catapults, trebuchets, and launchers. Models include classic seige devices from medieval times: crossbow, reverse-draw crossbow, onager, catapult, trebuchet, and ballista.

The 32-page, full-color illustrated manual includes detailed assembly instructions as well as experiments that demonstrate physics and engineering topics like force, energy, motion, and trajectory.

Specially designed and tested for safety, the kit includes soft foam balls and foam-tipped projectiles; building components are designed to allow only the included projectiles to be inserted.

Bonus activities! Also includes cardboard target blocks to test your aim, and the box itself transforms into a castle kids can color and decorate to set the scene for their medieval physics adventures!