Omnigrip is called the non-slip patented patchwork ruler from the brand Omnigrid by Prym. It is available in various sizes with inch scale. The special green colour of the markings on the underside prevents slipping on the fabric and thus ensures a higher safety when running the rotary cutter on the ruler. As with all Omnigrid rulers, the scratch-resistant laser printing on the bottom of the rulers eliminates optical distortion. The detailed division of the scale in eight inches and the angle markings of 30, 45 and 60 degrees make this ruler an indispensable helper for sewing and quilting with inch dimensions.