Here are 9 Pigeon Peristaltic Nipple (Wide Neck) nipples. There are 6 SS size nipples, 4 of which were used in rotation for a month. The S size nipples include 3 that were used for about a month, plus 2 more that were added later and used for about two weeks. They have been sterilized in a microwave. They have been stored at home for over a month since they were last used, so please wash and sterilize them again before use. Please refrain from purchasing if you are concerned as these are used items.