This is a kippis collaboration baby bottle. I bought it new and used it for about 4 months, so there are some minor scratches. The nipple is size M. As a bonus, I'll include a chu-bo portable baby bottle. Thank you. This is an EC-exclusive design, a collaboration between the Nordic design brand kippis and Pigeon. The bottle is a "Breastfeeding Reality (R)" baby bottle that uses T-Ester, a new material with the transparency of glass.