Keedil All Purpose Serger Thread is a durable, 40-weight, 2-ply thread made from 100% spun polyester. Each spool contains 3,000 yards of thread wound on a 4.5-inch plastic cone, suitable for both home and industrial machines. This polyester thread is designed for a wide range of applications including sewing, quilting, embroidery, and crafting. It resists shrinkage and fading, and is compatible with various fabrics for general-purpose stitching.