COATS & CLARK S940-0900 Dual Duty XP Fine Thread, 225-Yard, Black" /> Spool features the dual-trap system for a more secure storage without the spool unwinding Recommended needles: Machine: 9(65) Hand: sizes 9 and 10 His extra performance thread is ideal for lingerie bridal/formal fashions Batiste chiffon nylon tricot organza voile as well as other sheer fabrics