Flip-Mat: Ship features a classic four-level ship with cannons, sleeping quarters, cargo holds, and all the great stuff you would expect in a sailing vessel. The Flip side features an expanse of the rolling ocean, perfect for some on-the-water adventure! Flip-Mat Ship 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!