This double sided Chromakey background is the professional solution for both video and photography when you want to cut your subject out of the background and add any other background of your choice, which can either be a scene that you've shot, or one of the thousands of digital backgrounds that are available. You need this choice of blue or green because there needs to be a color contrast between your subject and the background. As an example, if your subject is wearing a blue top, you need the green side and if they are wearing a green top then you need the blue side. This large 5'x7' folding background is perfect for head shots or 3/4 shots, and wide enough for a couple or even a small group, when turned sideways. The hanging loop to secure the background to anything.