The Ballista Kit is based on the Roman design. It is laser cut from select hardwood for easy assembly and reliable performance. Detailed, full-color instructions guide the builder through each step of construction. The completed model measures 20.3 centimeters (8") x 10.1 centimeters (4") x 15.2 centimeters (6"). A how-to section demonstrates loading and firing the completed Ballista, including tips on tuning the finished kit. Required wood glue not included. This tabletop kit has been designed for simple assembly. Designed with interlocking parts, a simple, reliable trigger, high strength cordage and lightweight projectiles this Ballista is incredibly durable. Three easy-to-follow rules for public demonstration are provided to ensure everyone's safety