Reversible Vinyl Megamat Blue-Green 1 inch Squares (34.5in x 48in)Mat Size: 34. 5" x 48" (88cm x 122cm) Made of durable vinyl, providing an ideal playing surface Rolls for easy storage or travel, lies flat for gameplay Provides a smooth, matte surface to protect miniatures and dice Only use water based overhead projection pens to draw layouts on the surface of the mat Clean with a damp cloth Well suited for roleplaying and historical simulation games Do NOT use dry erase markers or grease pens Do not leave ink on