Gaosi Tools  Profesional Cutting Mat (A4 (12x9 Inch)) Professional-quality, double-sided mat has metric grid lines & angles on one side and imperial (inches) grid lines & angles on opposite side Compatible with rotary cutters, Ideal for Most Crafting, Workshop or School Projects DURABLE & LONG LASTING: The Original & Unique CRAFTY WORLD Self Healing Surface That Automatically Reseals and Repairs Itself After Cuts 3mm, 3-ply construction for heavy duty cutting.Can used for leathercraft,handbag,dress,belt or other handmaking, Self-healing finish reseals surface cuts, providing a continually smooth surface for all cutting projects