YLI Machine Quilting Thread, 500 yard spool, 40 weight / 3 ply long staple, Egyptian Mercerized 100% Cotton. This special variegated pink thread was designed by Luana Rubin for YLI as a breast cancer fundraiser - a percentage of sales will be donated to breast cancer research by YLI Thread Corporation. YLI’s new Machine Quilting Thread is made from the finest long staple cotton found anywhere in the world. This mercerized quilting thread is made expressly for the machine, but hand quilters love it as well. Soft and smooth, with almost no fuzz or lint, you will find it a pleasure! Special Designer color: 'Nana's Rose Garden', by Luana Rubin.