It is suitable for all types and sizes of bottles up to 8.4cm in diameter. The only bottle warmer that uses a dry heating function for in-car use and thus does not require a single drop of water. The only bottle warmer with home and car wires that can detach separately for a more comfortable use. The only bottle warmer with a stainless steel container that protects the heating elements from limestone scaling. Keeps the baby bottle at a constant temperature and includes 1 container with lid for feeding. Use at home: warm water in a “bain-marie” and is therefore suitable to defrost and heat the milk (breast milk to preserving the nutrients must be heated only in a bain-marie).