Nova's Sew Straight Guide is fully adjustable for a huge variety of seam allowances. You decide where your perfect "1/4 inch" seam allowance is! Two unobtrusive screws hold it securely in place so it can not twist and scratch your beloved machine.
This is a great guide for sewing and quilting. It allows you to adjust for various weights of fabric so you can achieve the perfect seam allowance. The two screws have minimal sized heads, so they don't catch on your threads and fabrics or bruise your knuckles! The true beauty of the two screws is that they will not allow the guide to twist and scratch the finish on your machine! You can chain piece all day long, knowing that all you have to do is bump up against this guide and go!