Pigeon's Mother's Milk Realization SS size nipple for baby bottles. I used it a few times when my baby was a newborn, but they couldn't drink from the bottle, so I stopped using it. I washed and sterilized it, and then stored it. I think there are no noticeable stains. - Size: SS - Type: Nipple for baby bottles The box is not included. It will be shipped via Yu-Packet Post Mini. This is a personal sale, so please refrain from purchasing if you are concerned.