Pigeon Mother's Milk Realization Nipple for Baby Bottles SS Size, for 1-month-old babies, set of 4. - Quantity: 4 pieces - Material: Silicone - Shape: Standard - Application: For baby bottles Thank you for viewing. This is a Mother's Milk Realization nipple, SS size, for baby bottles, suitable for 1-month-old babies. Purchased in January 2026 and used until February. Sterilized each time using "chuchu tsukeru dake" (just attach). They will be delivered with the tips inserted as shown in the fourth picture. Currently raising two children, so I've estimated a longer time for shipping.