The non-slip ruler for quilting, sewing and crafts. For short strips and sashing. Right & left-hand numbering and angle system with 30°, 45° and 60° angle markings. Great for cutting 1⁄4″ fringe on ultra suede, marking 1⁄4″ seam allowance or for cutting most secondary cuts (i.e. angles). For use with rotary cutters and straight edge blades. Transparent, neon green double-sight lines that seem to glow on both light and dark fabrics.. Non-slip backing.