Omnigrid Rectangle Ruler, 6" x 24".....Quilters can use the Omnigrid Quilting Ruler to achieve precision fabric cuts and piercings and complete their projects quickly. This quilting ruler is made of high-quality acrylic plastic and features a two-colored, laser-cut grid with 0.002 inch accuracy for easy reading on light and dark fabrics. It also comes with bias lines at the bottom, and left and right handed numbering system. This prevents the turning and flipping of the ruler so that you can use both sets of the diagonal lines. Brand: Omnigrid Dimensions: 6 x 24 inches (W x H) : Each ruler is laser cut to within .002-inch accuracy