Self Healing Rotary Cutting Mat. The ideal size for cutting full widths of fabric right off the bolt. It features a self- healing mat with measuring grids on both sides for double the usage. Includes 30, 45 and 60 degree bias lines that make shape cutting and cutting at angles a breeze. This package contains one 24x18 inch double-sided self-healing gray rotary cutting mat with a 1 inch grid and 30, 45, and 60 degree markings. Imported.