AMERICAN & EFIRD-All-Purpose Polyester Thread. This is an all-purpose polyester thread that is machine washable; dry clean resistant; press resistant to 392F degrees; colorfast and light-fast; sew resistant; rub-fast and shrink free. This thread can be used for all fabrics and seams. The high breaking resistance of the Metrosene polyester thread creates solid seams with a very uniform appearance. It also has optimal elongation which makes for excellent seams elastically and outstanding wear characteristics.This package contains one 164yd spool. Available in a vast variety of colors: each sold separately. Imported.