This ruler is a helpful tool for any sewing, quilting or crafting. Ezy-Hem Gauge has imperial and metric measurements. It can be used to make a hem from ¼" to 4" on a straight edge and from ¼" to 2½" on a curved edge. The straight lines are on the other side. Includes complete illustrated instructions on back of the package. Clearance 50% Off. Last one!