Cut with confidence using this Omnigrid Double-Sided Cutting Mat with Grid. Measuring 18” by 24”, it offers both U.S. customary and metric options—one side with a 1” grid, ⅛” markings, and angle guides, the other with a centimeter grid, millimeter edge markings, and matching angle lines. Designed for precision, this versatile mat is the ideal size for larger quilting and sewing projects, ensuring accuracy with every cut.