User Summary: The Square Castle Towers Pack is part of the Castle Builder System. It is made of "Dwarvenite" and includes some metal parts. This item was initially available as an add-on to a pledge level during the Castle Builder System Kickstarter. The item comes in both painted and unpainted versions. CBS parts are from the City Builder System series. The Square Castle Towers Pack comes with these 47 pieces: (1) CBS - Extreme Offpack Door Wall Left (1) 4x4 Roof Platform (1) CBS - Extreme Offpack Door Wall Right (2) Castle Door (8) CBS - Stone Solid Wall (8) CBS - Arrowslit Wall (2) Stone Stairs (2) Short Stairs (1) CBS - Ladder (1) CBS - Solid Stone Floor (2) CBS - Stone Stairwell Floor (1) CBS - Stone Trapdoor Floor (1) Wood Trapdoor (4) CBS - Stone Gargoyle Post (12) CBS - Stone Post