The specially made vinyl features the same eye-pleasing oyster color as their existing single-sided mats while being made in such a way to give a flat surface for writing. Using water-soluble overhead-projection pens (not dry erase, grease pencil, or permanent markers), write on the vinyl and remove later with water when the drawing is no longer needed.Features Making these dice a unique addition to any dice collection Its original plastic cube from Chessex Type - Reversible Battlemat. Size - 1 in. Shape - Square and Hex. Item Weight - 0.58 lbs.