Measure, mark, fold, press: deep hems, long hems, miter corners and home decor. Heat resistant, press directly on the ruler. Can be used with dry or steam iron. Unique non-slip surface holds fabric in place for precise results. Size: 4 x 14 in How to Use: Fold fabric over ruler, match edge to size needed, press Fold corner to match miter line, press Use ruler to mark hem size, place ruler at mark, fold fabric and press.