Madeira's Aerofil Sew-All Thread No.120 is ideal for a variety of sewing projects; from quilting to darning. Use Madeira's Aerofil No. 120 Thread for both machine and hand sewing. Made from 100% polyester, this durable thread will hold firm in any project. With 180 thread colors to choose from, you will have no problem finding the right thread for every project. Each spool of Madeira Aerofil Sew-All Thread contains 440 yards (400m).