Complements other rulers and is perfect to take along "The Companion", 1"x12", complements larger rulers and is perfect for simple patchwork, finished blocks, borders, and bindings. New! OLFA, Non-Slip, Frosted Advantage Acrylic Rulers are not your ordinary rulers! OLFA's rulers are non-slip for stable and safe cutting and frosted with black grid lines for clarity on light- and dark-material.  The easy to read number and grid lines with 1" grids and 1/8" increments ensure precise measurements. For right-and left-handed use. Available in 8 sizes to accommodate all your crafting needs; no matter the project, we've got you covered. Good For: precise measurements and cutting angles during sewing and quilting applications. This ruler is perfect for squaring up finished quilt blocks, borders and bindings.