This is a set of two baby bottles purchased from Nishimatsuya. The nipples were replaced, so they are unused. There are marks from a permanent marker on the yellow part. These were used for about 2 years, but if needed, I will also include Pigeon M-size nipples. - Quantity: Set of 2 - Color: Clear/Yellow - Nipple Size: M (3 months and up) - Brand: Pigeon - Included: 2 nipples (M size) Thank you for looking.