The Omnigrid 2.5in x 8in ruler is a convenient, portable size for classes or keeping next to your sewing machine. Features 45 degree angle markings for bias cuts and cross cutting strata strips Use as a guide with a rotary cutter for curve work. Edge markings for accurate measuring and laser cut edges for smooth, deep cutting. Patented double-sight lines that show up on light and dark fabrics. Heavy-duty durable acrylic material. Left- and right-hand numbering and angle system. Color: Clear Made of: Acrylic Use: Quilting Ruler Size:2.5in x 8in Included: One Ruler