This model, based on the Warwolf, is a tabletop working replica of a trebuchet made in the 13th Century. Standing 24 inches (60 cm) tall by 11 inches (27 cm wide) this model will shoot balls of plasticine (included) over 20 feet! Please be careful of what (or whom) you take aim on, this thing can really let loose. An easy to make and use kit, with the pieces pegged for extra strength, this is a great kit for family learning about counterweights and projectiles, and is a great resource for STEM activites