Wards Essentials Trebuchet Kit, Material: High quality precision-cut Birch verner pure bond plywood, Designed to be safe and robust, Dry firings and heavy projectiles are no problem, Holes are pre drilled, Medieval weapons, engineering, and physics, Beam arm: 21in
Air Blower with Hose - 220V, Can be used in the Home, Barn, garage or work shop, This blower is specifically designed for laboratory use. It give constant pressure at low noise levels. Dimensions: Weight (lb)6.0xLength (in)14.0xWidth (in)8.5xHeight (in)8.5