I purchased my background stand back in April 2010 off of a ebay store. I paid about $55 + $15 shipping and it came with a 6x9 off-white background. I'm not sure what material it was but it was very durable. I still use the stand today and it works fine for me.

This is their direct website ...
http://www.dmkfoto.com/category_s/21.htm

I know there are better out there but it has worked fine for me. I used it alot the first few years but not so much as of lately. Also, since then I purchased a few muslin backgrounds on ebay and one blackground from a local craft store and I so much prefer the velvet background! In fact, I sold two of the muslins and still have one that I never use. IMO, the muslin shows too much wrinkles.