Wholesale mini Crossbow : Wooden Engineering Model Building Kit 

Ready to storm an evil villain's castle? This mini ballista building kit is exactly what you need! Learn about engineering simple machines, physics, math, and history all with this STEM building kit. Building this wooden mini model kit helps demonstrate how a bent bow stores elastic energy and the mechanical advantage of a lever to multiply human force. Once built, you can launch mini projectiles and defeat those pesky beasts. The renowned Renaissance artist Leonardo da Vinci designed this crossbow. He was also a scientist, architect, engineer, and inventor. While we may have put this through an inshrinkerator, it would have been an intimidatingly giant crossbow or “ballista”. This design of a complex system of gears and pulleys demonstrates engineering and mechanics. Details: * Pre-cut wooden models for DIY assembly * For ages 8+ * Estimated build time 30 minutes * Built dimensions 7”x 2 ¼” x 3 ½” (mini!) * Includes educational manual * Packed in Point of Sale display box of 12 Hands on science kit at its best! Wooden model building kits are great screen free toys for kids. A STEM activity that decreases stress, increases focus and attention span, organization, spatial and fine motor skills. A great gift that will bring all ages together for a project. Back to school DIY kit, engineering kit, physics project, wooden craft kit. A great item for many retail sites looking for STEM toys or engineering kits for kids: children's museum toys, toy store, hobby store, educational gift shop, science museum toys.