From the publisher:
These products are part of the acclaimed Master Accessories line. Each product features a small monster’s lair, usually three or four rooms, that can be easily added to your ongoing campaign. For each product, you get a wonderful overview map and three or four battlemaps for miniature games, detailing each room of the lair. The battlemaps are superb 3d renderings at the stunning resolution of 150 dpi, which allows you to obtain an amazing print quality. For each map, you get also a grayscale-optimized version.
In addition, Battlemaps Lairs offer you a degree of customization. At the bottom of each color map you will find a checkbox (that will not be printed) that allows you to make the room “empty”. Thus, if you do not need that sarcophagus in the mummy’s tomb (perhaps because it doesn’t fit in your story) you can easily remove it. For each map, you get also a grayscale-optimized version.
Some Battlemaps Lairs feature a complete, ready-to-use D20 villain. They contain a complete stat block plus a background story that will help you create adventures and scenarios, and finally a combat tactics section.