... price 3.various colors&patterns Functional Polyester Thread 40s/2Polyester Sewing thread Features:a) (40s/3): used for tailoring, trousers, jacket, medium ... ), (20s/3): used for jeans, upholstery PVC bags, canvas, footwearc) (40s/2) for shirts, jackets, pants, 20/2, 20/31) 20 ...