I bought these baby bottles just in case, but I ended up breastfeeding exclusively from the start of my hospital stay, so I never used them! I've stored them after sterilizing them. The nipples are size SS. There are no noticeable scratches or discoloration, but these are used items, so please purchase only if you are comfortable with the details (*^^*) I think it's a good deal, as they cost nearly 6000 yen at retail price ♫ I don't plan to sell them individually at the moment. Pigeon Mother's Touch (Bonyu Jikan) Baby Bottle Nipple Glass Plastic