Finish your quilting projects on time with the Dritz Quilt-n-Sew See-thru Ruler. This 18 x 2-inch transparent plastic ruler enables you to accurately position and mark your needlework. It comes with 0.05-inch grid markings and 0.5-inch spaced holes for centering patterns, drawing parallel or perpendicular lines to redesign patterns. You can also use it for drafting quilt blocks and designs or adding seam allowances, enlarging patterns, drawing circles, scallops and more