6x4 GEO Mat - Hex Grid 1.25" White Grid6x4' Hex Grid GEO Mats in 1. 25" Hex Grids with either a white colored grid. We love the gaming industry and, even more, we love bringing innovative products to improve the gaming experience; the GEO Mats are the next TABLEWAR innovation to do just that! The GEO Mats are, most simply, a transparent gaming surface with a pre printed grid on it. Once more, you can draw on the surface with wet erase markers or grease pencils and easily erase the marks.