This is a type of postcard that was popular in the past, where you would stick the stamp on. I checked the contents of a few, and it seems there are 16 cards in total, with 2 cards each of 8 different designs per set. So, there are 64 different designs of cute cats, with 2 cards of each design. They're adorable just to display as postcards. I can't show all the photos, but the ones that are visible are all pictures of cute cats. I think this is a must-have item for cat lovers. I'm sorry, but I don't know if the adhesive seals still work due to the age, so please consider them as postcards only. Some of the white areas have stains. Some don't, it varies, so please be aware of this as well.