Once I got it home, of course, I soon realized the pitfalls. Once you put your rulers on it, to get to the one you need, you have to take the little end covers off, and slide the rulers around which of course means that some slide off. All in all just a major hassle. I told my husband I needed hooks on the hoop to hang my rulers so I could get to the one I needed easily. He came up with this idea. He bought some chain at the hardware store. Using two links, he created these hangers for me. One link slides around on the hoop; the other he separated to form a hook. He filed the rough edges smooth so they wouldn't scratch the rulers. I added the wooden balls (craft section at Jo-Ann's) to separate the hooks. Now I can get to my rulers easily and they sort of look like giant chandelier earrings on the closet door!
Now my problem is I need to make another one! Too many rulers!