4 cone bundle pack of Threadart strong spun polyester on large cones is designed for serger machine Color fast, lustrous, and very durable 2750 yards per cone, 40 weight/2 ply. Over 56 Colors Available Combines the strength of polyester with a soft touch and sheen similar to cotton Outstanding durability, colorfastness and low lint. Made of strong 100% spun polyester. 40 weight/2 ply, 2750 yds per cone. Perfect for all your serging and sewing needs. You will get 4 huge spools for each unit you order. A rainbow of colors are available. 4 cone bundle pack of strong spun polyester on large cones is designed for serger machines. This thread is an ideal multi-purpose thread for all fabrics including lightweights. With spun polyester the strength of polyester is combined with the soft touch and sheen of cotton. Outstanding durability, colorfastness, and low lint. 2750 yards per cone 40 weight/2 ply Tex 27 Sealed in clear shrink wrap. You will get 4 cones for each unit you order.