Feature:1. The adapter is specially designed for our milk bottle warmer.2. With the adapter, you can use different brands milk bottle with the warmer conveniently.3. High-quality material, durable and BPA-free, safe and reliable.4. Easy to install, no need any tools.5. Please check the milk bottle brands before ordering the adapter in different size.Specification:Features:The adapter is specially designed for our milk bottle warmer.With the adapter, you can use different brands milk bottle with the warmer conveniently.High-quality material, durable and BPA-free, safe and reliable.Easy to install, no need any tools.Please check the milk bottle brands before ordering the adapter in different size.Specifications:Size: 35mm/50mm/53mm/56mm/60mm/65mm(optional)Packing List:1 * AdapterPackage List:1 * Adapter