1、Made of high quality aluminum magnesium alloy and glass material, sturdy and durable to use. 2、Adopts PTC thermostatic material for heating evenly and quickly, less power consumption. 3、Light weight and compact size, easy to carry and storage 4、Suitable for most stainless steel cup, feeding bottle, ceramic cup, glass cup, etc. 5、Keep your coffee, tea or other hot beverage warm up to 55℃. Never worry about high temperature and high oxidation, safe in use. Features: Made of high quality aluminum magnesium alloy and glass material, sturdy and durable to use. Adopts PTC thermostatic material for heating evenly and quickly, less power consumption. Light weight and compact size, easy to carry and storage Suitable for most stainless steel cup, feeding bottle, ceramic cup, glass cup, etc. Keep your coffee, tea or other hot beverage warm up to 55℃. Never worry about high temperature and high oxidation, safe in use. Great for use at home and office, keeping you drinks warm all the time. Specification: Condition: 100% Brand New Main Material: Aluminum magnesium alloy + Glass Color: White Thermostatic Temperature: 55℃ Automatic power off control: 8Hours Plug: EU Plug 220V / US Plug 110V(Optional) Size: Approx. 11.7 x 11.7 x 2.1cm / 4.61 x 4.61 x 0.83 inch Cable Length: Approx. 1.4m / 4.6ft Package List: 1 x Cup Warmer only 1 x User manual Notice: Double-wall cups and any cups with dents at the bottom are not recommended for this warmer for safety! This warmer can not be used to boiling water in high temperature!