This thread is designed as a strong, all-purpose hand-quilting thread for use on all fabrics. Because it has a glacé finish, it does not tangle, knot or twist while hand sewing. The glacé finish also reduces abrasion on the thread which can cause fraying. Trap spool keeps thread storage tidy. This thread is easily identified by the green spool color. COATS&CLARK-Dual Duty Plus Hand Quilting Thread. This is a hand quilting thread for all fabrics. It is designed to be a strong, all-purpose, hand quilting thread. Because it has a glace finish, it does not tangle, knot or twist while hand sewing. The glace finish also reduces abrasion on the thread which can cause fraying. Trap spool keeps thread storage tidy. And the spools are easily identified by their green color. Each spool contains 325yds. Imported.