The Omnigrid Square Ruler is perfect for cutting squares from strips, cutting strip sets into segments, cutting pieces for quilts, trimming foundation piecing, and cutting diamonds, triangles and hexagons. It's marked for left and right handed use. Omnigrip rectangle rulers are used for cutting strips and trimming fabric edges during quilt making or when executing a variety of sewing and fabric craft projects. Details:Clear with neon and black markings2.5" x 12.5"Multiple degree angle lines for easy pivot of 30, 45 & 60 degree cutsEdge markings for accurate measuringLaser-cut edges for smooth, deep cuttingLeft- and right-hand numbering and angle systemPatented double-sight lines visible on light and dark fabricsPatented non-slip backing to hold ruler in place during cuttingHeavy-duty durable acrylic materialFor use with rotary cutter or straight-edge blade