Item: 100% Dyed Spun Polyester Sewing Thread Spec: 20S/2, 20/3, 30S/2, 30S/3, 40S/2, 40S/3, 50S/2, 50S/3, 60S/2, 60S/3, etc ... Item: 100% Dyed Spun Polyester Sewing Thread Spec: 20S/2, 20 ... /3, 30S/2, 30S/3, 40S/2, 40S/3, 50S/2, 50S/3, 60S/2, 60S/3, etc ...