The OLFA RM-HG-01 double-sided rotary mat is designed to support rotary cutting while protecting your work surface for sewing, quilting, and crafts. Measuring 6 in × 18 in (152 × 457 mm), it is self-healing with printed markings on the front and a blank reverse for general cutting tasks. The yellow mat is made with a triple-layer heat welded build and is intended for use with rotary cutters rather than fixed blades.