Thank you for viewing. This is a set including a Combi Jokin Jo-zu sterilizer, two Chuchu baby bottles, and a Sanco bottle brush set (using antibacterial thread). The nipples on the baby bottles are not new. They have been barely used, but were stored at home, so please discard them if you don't need them. They are the type that doesn't require size upgrades. Glass baby bottles are recommended because they cool milk quickly. The Jokin Jo-zu sterilizer and the two baby bottles are in relatively good condition, but please understand that they are used items before purchasing.