User Summary: The Door Set is part of the City Builder System. The Door Set is made of "Dwarvenite." The Door Set was initially available as Add-On item during the City Builder System Kickstarter. The item comes in both painted and unpainted versions. The Door Set comes with these 12 pieces: (1) Door, City, Stone Wall (1) Door, City, Tudor Wall (2) Door, Double, Stone Wall (2) Door, Double, Tudor Wall (2) Door, Noble's, Tudor Wall (1) Door, Ramshackle, Stone Wall (1) Door, Ramshackle, Tudor Wall (2) Door, Studded, Stone Wall