This thread is 100% silk and is woven into a ribbon which is hand dyed. It’s about 1/16″ wide. There are 11.1 yards per skein. I have used this thread as is and it is a delight to stitch with and I usually use a laying tool. You can also use it as is for wonderful straw, sticks, hair, etc. The inset picture shows how I used it for a nest. Some people like to iron it first (using a mini hair straightening iron). There are currently 81 colors and more are added every year. Dye lots do vary so be sure to order enough for your project. See the colors up close here.