The groupings of images you choose are to be framed, perhaps more than one at a time, and exchanging the images whenever you would like to see something new on your wall. Or just to have them around to look at when you want. The size of each sheet is 8 x 10″, while the printable space of individual images varies. You may choose from felt texture paper or smooth satin paper. The portfolios themselves are printed on 100% recycled paper, as is the cardboard backing inside, and most likely the mailing envelope as well.