Coats Dual Duty XP General Purpose Thread 250yd - Black - This thread combines advanced technology from Coats with nearly 200 years of thread-making experience. Product is polyester-wrapped core-spun construction, creating a thread that provides enhanced seam appearance and makes sewing trouble-free. Smooth and strong, it sews perfectly on all machines from vintage to today's most advanced. Length: 250yd (228.6mm).