The Tommee Tippee Closer To Nature Travel Bottle & Food Warmer is a portable solution for warming baby bottles and food while on-the-go. This thermal flask design keeps water hot for hours, allowing you to warm bottles anywhere without electricity. Key features: • Portable thermal flask design • No electricity needed • Keeps water hot for several hours • Compatible with most baby bottles • Compact and lightweight for travel • Stainless steel construction • Secure screw-on lid The warmer consists of a thermal flask that stores hot water and a wide outer container that acts as a warming vessel. To use, simply pour the hot water from the flask into the outer container and place the bottle inside to warm. The securely sealed thermal flask is designed to maintain water temperature for hours, making it ideal for day trips, overnight stays, or any time you need to warm bottles away from home.