546 yards (500 meters) Perfect for making overlock stitches on a serging machine 100% polyester Made in Poland Imported exclusively by Bias Bespoke Supply Co. ATENA 160 serger thread comes in two sizes: this 5000m cone and small 500 meter spools. It's 100% polyester (Tex 22), and is perfect for making overlock stitches on a serging machine. Manufactured in Poland by Amanda Threads, a company that we're pleased to present to the North American market! Each spool contains 546 yards (500 meters). We also carry ATENA 160 in 5000 meter spools.