Abong Ballista Wooden Miniature Tabletop Desktop Warfare Kit - Easy Assembly and Reliable Performance - with Detailed, Full-Color Instruction Guide - 28 Pieces STEM Model Kit ROMAN DESIGN - The ballista was the ultimate artillery weapon of the Roman Empire. Similar in appearance to a giant crossbow, it was powered by massive bundles of twisted horse hair. The bolts it fires would mow down enemies and fortifications alike. FROM SELECT HARDWOOD - It is laser cut from select hardwood for easy assembly and reliable performance. COMES WITH AN INSTRUCTION GUIDE - Detailed, full-color instructions guide the builder through each step of construction. 28-PIECE KIT - Designed with interlocking parts, a simple, reliable trigger, high strength cordage and lightweight projectiles this ballista is incredibly durable. This 28 piece kit can fire payload over 30 feet. DESIGNED FOR ALL AGES - Both kids and adults will have a blast in building and launching the Ballista.