Madeira Aerolock Thread is a strong, premium, 100% polyester serger thread. It holds color even after years of laundering. It's composed of 2-ply, core-spun thread and is suitable for use in your serger. Like all Madeira threads, each cone undergoes extensive quality testing to ensure you have the best Serging experience.

This starter set includes six neutral colors (quantity of four spools in each color). Each spool holds 1,320 yards of Aerolock Thread.

Colors include white, black, ecru, beige, light gray, and gray.