Trudeau's Battery Operated Milk Frother is constructed of stainless steel and polypropylene. Standing base included, keep the frother on the counter for quick access! Easy and fast to clean, rinse the frother under hot water for several seconds and let air dry. To use, add 2 AA batteries into the top of the frother and push the button to control the whip. (2 AA batteries not included. 5 year warranty.