This catapult is one of Da Vinci's redesigns from the medieval catapults of 400 or so years earlier. While the Medieval catapult we made uses the force of twisted rope, this uses the tension stored in bent wood to hurl objects, usually over 15 feet. With no modifications you can experiment flinging with grapes, and those fun mini marshmallows too! Approximate size: 42 x 42cm. All pieces are pre-cut and drilled so the model is incredibly strong! Contains glue. Can be made in approximately 1 - 2 hours. Great for beginner siege builders!