The catapult has a long and interesting history. It has been around in many forms, evolving since about 400 BC. This model is based on the medieval styles that were used during the middle ages laying siege to castles and capturing towns. . Standing 15 cm tall and 12 cm wide, this siege engine can shoot a plasticine ball over 15 feet! Adjustable pads on the crossbar allow you to change the trajectory angle. The rope, strung through the middle gives great power to the swing arm! For ages 9 yrs+ All pieces are pre-cut and drilled so the model is incredibly strong! Can be made in about an hour. Contains glue. Great for beginner siege builders! 320mm x 100mm x Depth: 55mm