WarLock Tiles: Dungeon Tiles II - Full Height Stone Walls Exp.
WarLock Tiles: Dungeon Tiles II - Full Height Stone Walls Exp. - Rules of Play says:
The newest additions to the highly anticipated WarLock™ Dungeon Tiles line from WizKids are finally available for release! After a year of R&D, Wizkids has perfected the dungeon tile. The WarLock™ Dungeon Tile system solves many of the problems presented with other tile systems. The WarLock™ clips allow players to construct rooms in advance and place them on the table as needed.