Universal Ruler 6 x 6 Inch Square. Ideal for cutting out small parts, checking finished size of small blocks, sketches for precision work. With 45 and 60 degree angles. Yellow and black grid printing facilitates precise marking on light and dark textiles. Thick, robust material guarantees precise running of rotary cutters and art knives. Suitable for right and left handed use. Extremely precise laser printing on the underside of the rulers prevents optical distortion.