From the Publisher's Website: Flip Mat: Keep features a small fortress with a courtyard, stables, well, barracks, and battlements. The map includes numerous interior chambers, such as the throne room, war room, and grand entry hall, all of which make for perfect adventure sites. The Flip side features the broken terrain that might lead up to the keep. Flip Mat: Keep measures 24" x 30" unfolded and 8" x 10" folded. GameMastery Flip-Mats are designed to make your game portable and affordable. They're made with durable, laminated card stock and can handle dry erase, wet erase, and even permanent marker! Usable by experienced GMs and novices alike, this product fits perfectly into any Game Master's arsenal!