From the publisher's web site: Prepare to keelhaul scurvy scallywags with GameMastery Flip-Mat: Pirate Ship! One side presents side-to-side vessels pulled close for ship-to-ship combat, while the other details a single ship, making this durable accessory perfect for both high-seas combat or your home on the waves in any tabletop fantasy campaign! This portable, affordable map measures 24" x 30" unfolded, and 8" x 10" folded. Its coated surface can handle any dry erase, wet erase, or even permanent marker. Usable by experienced GMs and novices alike, GameMastery Flip-Mats fit perfectly into any Game Master’s arsenal! On tabletops across the world, the Flip-Mat Revolution is changing the way players run their fantasy roleplaying games! Why take the time to sketch out ugly scenery on a smudgy plastic mat when dynamic encounters and easy clean-up is just a Flip away? This Flip-Mat links up with GameMastery Map Pack: Ship’s Cabin to reveal the lower decks!