This is one of the best green screen materials. Its made by eefx (check out www.eefx.com) its the foamy material that is about 3/16" thick. no wrinkles, even after you fold it up. I myself carried it rolled up in a gigantic black tube. (don't ask how I got this awesome tube, its a long story). It is 10' wide and 20' long. According to EEFX, this is what hollywood uses for green screen. Although I've never worked in Hollywood, so I can't back that up myself.
It has a steel rod in the center of the roll so that it can be supported across all 10' and then placed onto any c-stand. (obviously you'll need 2 c-stands, one for either side)
I have to sell it because I no longer have a studio and have no place to store it. Keep in mind that with the tube case, it is 11' long and about 9" in diameter. It was only used twice because I am more of an "on location" guy, but after dealing with awful cloth green screen I was like... NEVER AGAIN!!! This gave me a perfect key with much less effort.
This is definitely going to be local pickup/delivery. I can deliver to you no matter how far you are, but I charge $1/mile from zip code 19007, with a minimum of $50.
I am asking $350 for this package. I also have some c-stands for sale if you really need them (although I'd prefer to keep them for myself if possible)