4 pack of 6000 yard white 100% spun polyester serger sewing threads spool( upholstery, quilting drapery, beading ) cw textile all purpose thread. this thread can be used for a variety of sewing projects.this thread also suitable for any sewing machine<br><br> it features polyester covered polyester core for strength. <br><br> this package contains four 6000 yard spools.<br><br> it will not break at sewing machine and high speed machines.make your work easier and keep it running smoothly.<br><br>