mini Catapult : Siege Engine Engineering Kit Are you gearing up to defend your fort against a horde of beasts? Look no further because a catapult is exactly what you need! Introducing the mini catapult kit, adorable and perfect for your defense needs. A shrunk down historic replica of Leonardo Da Vinci’s catapult design. With this engineering kit, learn about simple machines. Once built, you can launch mini projectiles and fend off those pesky beasts. Hands-on learning at its best. Building models decreases stress, increases focus, organization, spatial and fine motor skills.