Full Description: Polyester Floss offers exceptional luster and color fastness ideally suited for designs used in combination with Super Brite Polyester embroidery and monogramming thread. Ideal for merrowing/surging. 200/3 ply multistrand format can be used on machine. Create designs that flow or type stitch. Old fashioned technique that brings color and brightness to any project. Reverse bobbin work or serger machine.