The OLFA QR-6x12 frosted acrylic ruler is designed for precise measuring and cutting in quilting, sewing, and crafting, especially for patchwork layout work. It measures 6 in × 12 in (152 × 305 mm) and includes a pivot-point compass for common angle cuts when piecing, trimming, or aligning blocks and borders. The frosted surface helps the black markings stay visible on light and dark fabrics for quick placement.