OLFA Frosted Advantage 12.5x12.5 Inch Acrylic Ruler is non-slip for stable and safe cutting. Frosted back with black grid lines for clarity on light- and dark-material. The large bold black numbers are easy to read. The ruler has black grid lines at every inch dotted black lines mark the half-inch and black tick marks along the solid line mark the quarters and eights. The frosted back grips in place for safe stable cutting but repositioning for small adjustments. Great for squaring pieced blocks cutting larger pieces and works well as a template for pillow tops and simple square patchwork designs. Also great for fashioning scrapbook and album pages. For right- and left-handed use. Hole for convenient hanging. Available in 8 sizes. This package contains one 12.5x12.5 ruler. QR-12S 1071818. Imported.