Olfa 9 1/2″ Square Frosted Acrylic Ruler (QR-9S)Quilters and crafters rely on their rulers, and you can rely on this OLFA square ruler. Its an ideal substitute for larger square rulers. Use as a template for squaring up to 9 blocks, borders, and backgrounds and for cutting squares, triangles, and strips. Frosted acrylic surface allows black imprinted numbers to be read effortlessly. The frosted surface is non slip for extra stability and safety when cutting. Designed for accuracy and precision with