Buy from Amazon.com : http://fave.co/1EzmknG

CowboyStudio Photography Photo Reversible Pop Out Background Panel (Blue and Green)

Product Description :
5 x 7 ft when extended
Folds down to a compact 30 X 30
Chromakey green on one side and blue on the reverse
Spring steel liner flexes out to hold the material tight
Zippered Case included