The Giant Book of Battle Mats Vol. 2
The Giant Book of Battle Mats Vol. 2 - Rules of Play says:
Attention Adventurers! Grab your dice and get ready to roll initiative as the game is afoot. The Giant Book of Battle Mats Volume II is the ideal set of battle mats to keep you party rolling through any and every encounter. Through dungeons, across plains, through forests, town streets, down sewers and even into a mansion house, your quest for danger, excitement and treasure starts here!