Slim type S-size nipples for baby bottles, usable from 0 months. Since I didn't use them for 4 months, those who want to use two, please take a look. - Brand: pigeon - Type: Slim type - Size: S - Target age: From 0 months - Quantity: 2 pieces I purchased them but didn't use them. New and unopened. I plan to fold the box and put the contents in a zip lock bag, etc., for shipping. Thank you for looking.