Chessex: Battle Mat 1.5'' Reversible Square/Hex 23½" X 26" (66 X 60CM)

Reversible Battlemat w/ 1.5" Squares & Hexes

These mats, first made available in 1981, have become the standard for vinyl game mats. Using water-soluble overhead-projection pens (NOT dry erase, grease pencil, or permanent markers), you can write on the vinyl and remove later with water when the adventure is done. 1" Hexes (25.4 mm)
23.5" H x 2.25" W x 0.25" D

Please note: Never use dry erase, permanent, or grease-pencil markers. The vinyl is too porous for the lines created from them to be able to be removed. Use water-soluble markers/pens. If you have any doubt of the suitability of any particular marker, draw a small line on the border, let sit for a while, and see how well it can be removed. Better to have a small permanent blemish on the edge of the mat than a permanent map drawn on the entirety of the mat.