I just ordered them from the McCall's website to make drapes for my bedroom.
You sew the tape onto the top of the fabric, attach the rings (they snap
together) and put it on the rod and you are done! The only problem I had is
that I ordered white tape with white rings, when it arrived black rings were
in the box. I called and Kiley was very nice and had another set sent to
me, but guess what, these are black too. It says right on the invoice WHITE
and on the second one too. Frustrating! So now on Monday I will call
again......

You can find something similar at Hancock Fabrics, but it was more
expensive.

Linda in Texas (still without drapes in my bedroom)