Description colour: blue Material: wall thickness 304, outer 201 stainless steel Size: 7,5x14 cm Capacity: 320 ml Sealed cover Non-slip cup bottom Portable design 304 stainless steel insert [Safe and healthy material] The children's insulation kettle is made of food grade 304 stainless steel and is FDA certified to meet your drinking needs. (Size: 7,5x14CM), enter to introduce children's service for children's use, safe and secure. [Waterproof LED Display] Waterproof LED display that can be submerged in water. Setting the LED display and the operating temperature will be displayed on the LED display. No need to check the temperature with your mouth to help burn yourself. [Keep warm and warm continuously] Vacuum cups and cups hindered heat transfer. (After 24 hours in water at 100C temperature about 40C) [Wide application] Whether you're traveling, at home, in your childhood, or on the go, this is your perfect companion. Simple and sociable, it is a gift for friends and family.