This is a set of 12 unopened milk cartons. The designs on the sides may or may not include advertisements. If you are concerned about the side designs, please comment. The front and back designs will not change. The cartons have been washed thoroughly with dish soap and dried in the sun. There may be slight residual odors. They will be folded as shown in the photos and shipped compactly with masking tape, etc. For those who understand the above.