User Summary: The Siege Defense Pack is part of the Castle Builder System. It is made of "Dwarvenite" and contains some metal parts. This item was initially available as an add-on to a pledge level during the Castle Builder System Kickstarter. It was not advertised during the Kickstarter campaign but was made available during the final order. The item comes in both painted and unpainted versions. The Siege Defense Pack comes with these 8 pieces: (2) Arbalest (4) Battlement Blade (4) Iron Scaled Shutter (2) Wooden Pole Stand (2) Oil Cauldron (2) Barrel of Arrows (4) Arrowslit Cover - Armored (4) Wood Shutter