These are socks that were worn as a pair by twins. The upper left socks (from "Inai Inai Baa!") show some signs of wear, but the others have no noticeable stains. I've forgotten the size, but they were worn from around the age of 1 to 2 years old. Please understand that these are children's clothes and have been stored by a private individual before purchasing. I do not smoke, and I do not have any pets. If you have any concerns or need more detailed photos, please ask in the comments section. Also, if you purchase these items together with other items I have listed, I will offer a discount, which will be around the shipping cost, so please let me know beforehand. Price reduced on August 8th.