From the publisher:
Illustrated cardstock terrain tiles for use with the Dungeons & Dragons Roleplaying Game.
This D&D 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 and three-dimensional enhancements with which to build exciting encounter locations.
This accessory contains four double-sided sheets of illustrated, diecut terrain tiles printed on heavy cardstock, plus two sheets of three-dimensional terrain elements, allowing you to create platforms, staircases, and other dungeon fixtures.
From the back of the product:
This pack contains six durable, double-sided, fully illustrated tile sheets, including two sheets of 3D dungeon terrain elements that you assemble yourself. Use these tiles to make great D&D encounters that enhance your roleplaying game experience.