This 12x18 inch self-healing rotary cutting mat is designed for sewing, quilting, and crafting projects. Made from durable 5-ply PVC, it features self-healing properties that erase cuts and slices, maintaining a smooth surface after repeated use. The mat's non-slip bottom ensures stability during cutting, preventing warping or damage to surfaces. Its generous 12x18 inch grid includes 1 and 1/2 inch markings, 1/8 inch ruler lines, and 45 and 60-degree angle guides, allowing for precise measurements and cuts. The reversible sides are colored green and black, each with clear gridlines in both inches and metric measurements. Suitable for cutting fabric, vinyl, paper, and photos, this versatile mat is available in four sizesβA4, A3, A2, and A1βto accommodate various crafting needs. Its sturdy construction and detailed gridlines make it an essential tool for artists and crafters seeking accuracy and durability.