6 1/2″ x 24″ Omnigrid Ruler. New larger width for long strips. Patented black & yellow sight grids for easy reading and measuring of light & dark fabrics. 30degree 45degree & 60degree angle lines printed on the ruler to allow for easy pivoting instead of flipping. Omnigrid Rulers are the nomber one selling quilting ruler in the world. They are preferred by professional quilters & teachers all over the world. They are guaranteed to last longer than other rulers. They are the only ruler to maintain +/- .002 inch accuracy. Omnigrid’s patented and trademarked (black and yellow) double sight line make for easy reading and measuring on light and dark fabrics. Markings make right or left handed use easy. Omnigrid Rulers have grid markings throughout. These rulers are made of heavy-duty, premium quality acrylic and laser cut for a smooth edge.