From publisher blurb: This product expands upon the Basic Dungeon Tiles range with the introduction of larger (multiple-page) room tiles. Included in this booklet are 12 new tiles that can be pieced together in a variety of different ways to produce rooms of various shapes & sizes. Note that these tiles are intended for use with 28mm miniatures (on a one inch grid), and are compatible with all the other tiles in the Basic Dungeon Tiles range.