OLFA, Non-Slip, Frosted Advantage™ Acrylic Rulers are not your ordinary rulers! OLFA’s acrylic rulers are non-slip for stable and safe cutting and frosted with black grid lines for clarity on light- and dark-material. This must have size is ideal ruler all of your cutting needs. Cut and measure accurate borders and patchwork, as well as perfect bindings with our easy to read numbers and grid lines - 1“ grid with 1/2“, 1/4“ and 1/8“ increments for precise measurements. Unique patented Pivot Point angle markings to easily make 15°, 30°, 45°, 60° and 90° cuts. For right-and left-handed use.