These are the breastfeeding bottles used in maternity hospitals. After washing with baby detergent, they were sterilized with Pigeon's "Pochitto" sterilizing product and stored cleanly in Ziploc bags. Pigeon Breastfeeding Realization Direct-Attach Nipples Set of 4 maternity hospital bottles + 4 SS nipples + 4 lids Set of 4 transparent 100ml bottles, with yellow caps and nipples (4 of each). These bottles were easy to use after discharge from the hospital because they are the same as the ones used there. The milk comes out properly until the end, and they are easy to hold and sturdy. Purchased in June 2025. I bought these thinking I would use them until my breast milk supply was established, but I was able to breastfeed exclusively after leaving the hospital, so I am selling them. Because the amount is small, they don't get hot when held, and they cool down easily, so they are recommended for those who are supplementing with formula, as the temperature becomes just right during feeding. They are in relatively good condition, but please note that there may be some minor scratches from use. Please purchase if you understand this. - Brand: Pigeon - Capacity: 100ml - Quantity: 4 bottles - Cap color: Yellow Pigeon glass bottles Breastfeeding Realization For maternity hospitals Direct-attach I will sterilize and dry them again before shipping. I bought 2 for 2580 yen! Since there are 4, it's a great deal as it would cost over 5000 yen! Set contents: 2 x 100ml bottles, 2 x caps (yellow), 2 x nipples (SS, for general newborns) Newborn compatible: Reliable bottles also used in maternity hospitals, can be used from the newborn period Practical design: Transparent bottle with graduations, allowing you to see the amount of milk at a glance Cleanliness management: Comes with caps for hygienic storage and convenient portability Ease of use: Direct-attach nipple design for easy assembly and washing Color: Transparent Material type: Free BPA-free, Chemical-free Item Weight: 150 grams Bottle nipple type: Breastfeeding Realization, SS (for general newborns) Capacity: 100 milliliters Thank you for viewing.