Born weighing in the 2100g range, direct breastfeeding wasn't going well for a while, so this bottle, which allows you to check the markings from 10ml, was very helpful. The nipples show signs of use, so consider them a bonus (I thought it would be convenient to have them ready to use). I sterilized them thoroughly before use. They are used, but the retail price is quite high, so how about it? A set of two 100ml glass baby bottles and two nipples. - Capacity: 100 ml - Material: Glass - Model: KR-100 - Included: 2 nipples