1.polyester thread 2. Use 1.2d X 38mm staple fiber 3.Color:available more than 800 4. Ring twist and TFO Polyester thread 40s/2 Key features & specifications: 1. Counts:20/2,20/3,20/4,20/6, 30/2,30/3,40/2,40/3,50/2,50/3,60/2 and 60/3 etc.; 2. Packing: inner packing:12pcs one box outer packing:10 boxes one of big carton 3.Color:available more than 800 4 certification:ISO9001.2000 5 excellent ...