In case anyone is looking for mulin, paper, or foldable backdrops, backdropsource.com is incredible. I just bought two more backdrops from them:
1. Reversible 5x7 white and black. This thing is made better than any folder I have bought, including Westcott. Incredibly stiff and thick material. Although it's a "backdrop" it can double as a white reflector and black subtraction.
2. 5x9 solid grey muslin: Same deal here. The material is incredibly thick, like canvas almost.
A couple years ago I bought two 10x20 muslins and they were of the same incredible quality. The price is not just "ok" but unbelievable too. FOr the fol;dable 5x7--69.00 US and for the 5x9 grey muslin 36.00US. I think their 10x20s are 115.
This backdrops are some of the finest equipment I own.
