Meet Omnigrip, the non-slip, patented Omnigrid patchwork ruler from Prym. It is available in various sizes with an inch scale. The special green colour of the markings on the underside stops the ruler from sliding on the fabric, which provides greater safety in guiding the rotary cutter along the ruler. As with all Omnigrid rulers the scratch-resistant laser print on the underside of the ruler prevents visual distortion. The detailed marking of the scale in eighths of an inch and the 30, 45 and 60 degree angle markings make this ruler an indispensable aid to sewing and quilting, when using an inch scale.