4 1/2"x 18 1/2" rulerRef: CGR418 This 4 1 2" x 18 1 2" rectangle features easy to read black and white markings printed in 1" grids marked in 1 8" and 1 4" increments. Use the easy to read, numerical black numbers (printed on white dots) and the 1 4" grip sides to cut whole inches. These 1 4" grip sides accentuate the dashed lines printed 1 4" away from two adjoining edges to aid in trimming seam allowances. Use the patented Turn A Round feature designated by the easy to