Cut, trim, and square up blocks easily with the Creative Grids® rotating cutting mat. The self-healing mat rotates a full 360 degrees and can accommodate blocks up to 14". It is marked with a 1" grid that includes 1/8" markings printed facing the outside of the rotating mat on all four sides, as well as 45- and 60-degree angled lines. The non-slip base gives you a stable cutting surface.