I understand you're asking about the nipple sizes for Pigeon brand bottles. Here's what I can share.

⚕️ Nipple Sizes for Pigeon Bottles

• Pigeon offers different sized nipples to suit babies of various ages. For example, the Pigeon Peristaltic Nipple Small is designed for infants aged 0 to 3+ months.
• Since nipples are available in different sizes, not all Pigeon bottles have nipples of similar sizes.

I recommend consulting with a pediatrician for further guidance.