From the publisher: This accessory gives Dungeon Masters an easy and inexpensive way to include great-looking terrain in their games. This set provides ready-to-use, configurable tiles with which to build icy caves, winter backdrops, and other exciting encounter locations. The tiles in this set can be combined with tiles from all past and future sets to create truly memorable adventures. This accessory contains six double-sided sheets of illustrated, die-cut terrain tiles printed on heavy cardstock.