From the publisher:
Illustrated cardstock terrain tiles for use with the Dungeons & Dragons Roleplaying Game.
This roleplaying game 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 exciting encounter locations.
This set of dungeon tiles is unusual in that it includes 4 sheets of dungeon terrain tiles and 2 sheets of tokens to represent spell effects, magical traps, and elemental hazards.