Aurifil is known for supreme quality with a smooth finish presented by the high quality Cotton Mako fibers that make up this thread. 50 weight cotton is a lighter weight cotton thread that is a favorite for piecing and quilting. Because of its extra fine weight, more fits on a bobbin, meaning more sewing time without stopping. At about 1/2 the price per yard of its smaller counterpart, the 1300 meter spool is an ideal size spool for using during a machine quilting project, or for endless hours of piecing. Create a collection of your favorite colors, or check out the boxed sets of pre-selected colors to help Inspire YOU to Sew!