DRITZ: Quilt-N-Sew See-Thru Ruler. This ruler is fantastic because it is transparent so that you can see your project under the ruler for accurate positioning and marking. Ruler has multiple markings for measuring: 1/16 outer edge marks, 1/8 grid with inch marks, 18 inch ruler and 1/2 inch spaced holes for centering. Use it for centering patterns, enlarging patterns, establishing parallel or perpendicular lines to redesign patterns or add seam allowances, drawing circles, scallops and more. This package contains one 18x2 inch plastic ruler. Imported.