From the publisher:
Delve into dungeons with this kit for the world’s greatest roleplaying game
This kit equips the Dungeon Master® with a screen and other tools that are perfect for running D&D® adventures through dungeons, whether ruined or thriving.
The Dungeon Master’s screen features a painting of a fantastic vista that plunges into the deep reaches of a mountain. Useful rules references cover the screen’s interior, with an emphasis on dungeon-delving.