Pigeon Breastfeeding Realization Direct-Attach Nipple for Hospitals General Newborn SS Size, 2 pieces Weight目安: 2500-3500g I bought these new and used them, but I quickly had to size up. They are still in good condition, so I'm selling them. I used them for about 5 times over a week. Due to shipping costs, the tips of the nipples will be flattened for shipping. Please understand this. (See photo 5) They have been washed and sterilized, but please wash and sterilize them again upon arrival. These have been used by a baby, so please purchase them understanding that they are used items.