From the back of the product:
They happen in every game—unexpected attacks on unsuspecting heroes. Be it a gang of thugs jumping a group that’s wandered into the worst part of town or a band of sneaky goblins and their traps along a remote forest trail, ambushes are a staple of any properly sadistic Game Master’s bag of tricks. Ambushes are best when they’re unexpected, and now you’ll never be without maps for them, thanks to GameMastery Map Pack: Ambush Sites!
This line of gaming accessories provides simple and elegant tools for the busy Game Master. Inside, you’ll find 18 captivating 5" × 8" specially coated map tiles, allowing you to use wet-erase and dry-erase markers, then remove ink with ease!
This set includes:
Woodland Path
Back Alley
Narrow Bridge
Cavern Corridor
Sewer Junction
Game Masters shouldn’t waste their time sketching maps every time their players stumble into danger. With GameMastery Map Pack: Ambush Sites, you’ll be ready next time your players get in over their heads!