From the Website: The day may be done, but the party is just beginning! This set of 12 double-sided terrain cards (plus bonus terrain behind each cover) is designed to let you create and customize your own urban adventure locations, including seedy taverns, posh restaurants, ritzy casinos, or even sultry strip clubs--whatever you need for the evening's adventures! Each card measures 5 by 8 inches, and is printed on thick glossy cover stock. The complete set is gathered in a clear resealable envelope for safe and easy transportation. From the cover cards: 12 Double-Sided Terrain Cards Set includes: Twelve 5x8-inch double-sided map cards. Two more bonus tiles inside the covers. Fine, colored terrain lines for miniatures play on a 1-inch grid.