The exclusive finish is ideal for both hand and machine quilting. The unique glazed finish means YLI Quilting Thread will pull through with ease, making it the thread of choice for serious hand quilters. Made in America from 100% cotton, YLI Quilting Thread is designed to become an integral part of any heirloom quilt. Perhaps the most surprising feature of YLI Quilting Thread is its performance in the machine. YLI's 100% Cotton Quilting Thread has proven itself in test after test on every kind of machine. The secret is the finish. 400 yards.