ilauke 4 x 3000 yards serger thread spools white polyester sewing thread overlock cone ilauke ilauke 4 x 3000 yards serger thread spools white polyester sewing thread overlock cone </br> </br> white overlock sewing thread spool can be used for hand sewing, also fit your thread serger and standard sewing machines </br> </br> specification: </br>- material: 100% polyester </br>- length: 3000 yard per spool, total of 12000 yards. </br>- color: white </br> </br> package includes: </br>4 x 3000 yard white thread spools