This is a set of 4 Richel door stoppers. I bought them all at once when I moved, and I tried using them a few times, but they didn't work for my house. I've kept them stored at home for a year after only being used for a trial period, so I'm selling them. Photos 5 and 6 show areas with faint black marks. They are only to the extent shown in the photos, so I think you can use them without worry. There is no box. There are no smokers in the house. Thank you for your understanding and purchase.