It is suitable for feeding bottles of various materials.Lightweight, small in size, easy to carry, can be used at home, traveling, traveling, hiking, shopping, airplanes, trains and cars, can meet your kid's milk needs anywhere and anytime.There are multi layers of material, good insulation, fast and even heating, can firmly lock the temperature, keep the bottle temperature for a long time, so that your lovely kids enjoy healthy and warm milkEasy to install or remove, simple and convenient to use, three temperature adjustable, hands not hot.Can be used for a variety of materials, suitable for the diameter of 5.5-7cm baby bottles, glass, milk cartons, etc., offering more convenienceSpecificationsItem Name: Bottle Thermal Warmer Bag.Material: Fabric.Features: Convenient, Safe, Durable.Voltage: 5V.Current: 2A.Powered By: USB Plug.Temperature High Level: 60 Degrees Celsius.Temperature Middle Level: 50 Degrees Celsius.Temperature Low Level: 40 Degrees Celsius.Size Details: 30cm x 13.5cm/11.81 x 5.31 (Approx.)Package includes1 x Bottle Thermal Warmer Bag(Others Not Included).1 x USB Cable