Upgraded Roll Packaging Shipped in a rolled format so it lays flat right out of the box — no creases, no ironing needed. Upgraded Material Design Waterproof and easy-to-clean surface with an odor-free rubber backing for non-slip stability. Reinforced stitched edges improve durability and extend the lifespan. 3MM Thickened Design The thickened mat helps reduce noise from tiles and pieces, creating a more comfortable gaming experience. Storage Bag with Shoulder Strap Includes a durable, scratch-resistant storage bag with a shoulder strap for easy carrying and travel. Princeton Rules Printed on Surface Features printed Princeton rules including tile exchange, placement, play order, and dragon tile usage for quick reference during gameplay. 32.5" x 32.5" Size Fits most tabletops and works great for a variety of board games.