Features: Self healing material, it’s still a smooth surface after multiple uses. 5-ply construction design (1/8 (3mm) thickness) for protecting your table top from sharp blade, rotary cutter or other cutting equipment. Non-slip surface, double sided utilization, self recovery, cutting smoothly and no scratching and marks. 1/2 grid and clear various measurements in both sides for cutting accurately and meeting your different needs. No glue, adopting special vulcanization process to adhere the material and ensuring item’s green usage and durability. A4 size (12 * 8), perfect for art crafts project such as glass cutting, sewing, quilting, leather cutting, model building and more.