61% polyester, 39% polyester filament. 10 yards (9m) skein. Made in the UK.An opalescent synthetic thread. It is very easy to work with and in weight is similar to #5 pearl cotton, six strands of floss or one ply of persian wool. It tends to pick up the colors used around it. Although it has lots of sparkle, decorative stitches look well worked with Snow.