From the publisher's website:
Batten the hatches!
Whether your party’s sailing into a stormy naval battle or sneaking onto a pirate ship in search of swashbuckler booty, no Game Master wants to spend time drawing every captain’s cabin and coil of rope. Fortunately, with Paizo’s latest Pathfinder Flip-Mat, you don’t have to! This line of gaming maps provides ready-to-use fantasy set pieces for the busy Game Master. Full of beautiful details ranging from mounted crossbows to wooden deck inlays, this double-sided map makes the perfect setting for any foray into the ocean’s battlefields!
Don’t waste your time sketching when you could be playing. With Pathfinder Flip-Mat: Warship, you’ll be prepared next time your party’s ready to engage in nautical warfare!