This universal sewing thread is specially designed for 3 and 4 thread overlock machines, although it can also be used for any kind of sewing on a standard machine. Ideal for finer materials, this 100% polyester thread will provide problem free, uninterupted sewing. White cone colour. TKt No. 120, Tex: 25, Dtex: 250, 2-ply. Suggested needle size: US 8/12 (60-80).