I think there are not many singles that looks as pretty on a bobbin as Thick and Thin yarn. This yarn is also known as slub yarn. I love that it looks like fluffy clouds on my bobbin. It can be used as a single or it can plied. I plan on plying my bobbin. I will spiral ply and make some coils thorough out. The coils look like little beehives but are easier to make. I will either make the yarn into a hat or a cowl.. I cannot decide on that yet.