The Tommee Tippee Portable Bottle Warmer is a convenient thermal flask designed for warming baby bottles on-the-go. It stores hot water securely and requires no electricity, making it perfect for travel and nighttime feeds. Key features: • No electricity needed - works with stored hot water • Thermal flask design keeps water hot for hours • Compact and portable for travel use • Securely sealed lid prevents leaks • Compatible with most standard baby bottles • Stainless steel construction for durability • Includes insulated outer container The warmer consists of a stainless steel thermal container and protective outer case. To use, simply fill with hot water before leaving home. When needed, place the baby bottle in the thermal container to warm the milk to the right temperature. The secure-fitting lid helps prevent spills while traveling. The compact size makes it easy to pack in diaper bags or carry separately.