This is a set of 12 glass baby bottles, 160ml each. The nipples are unused, so I can include the ones that came with them. However, my child used the wide-neck nipples from 母乳実感 (Bonyu Jikkan), chouchou, and Bean Stalk. Other brands worked fine too! I used about two of the 12 bottles, but the rest have been washed and not used. They were really helpful for cooling down milk quickly, but my parents bought me some of my favorite Pigeon glass bottles, so I stopped using these. They're really cute, so please use them!