I'm selling this because I no longer need it. I'm including two SS size nipples. The bottle was purchased a year and a half ago, and the nipples were purchased about 3 months ago. The nipples have been used about 10 times. I will sterilize them by boiling before shipping, but please wash and sterilize them again before use. If you purchase this along with the separate set of nipples I have listed, I will discount the total by 300 yen.