Culina Quality Stainless Steel Milk Frother/Latte Pen (Battery-operated) Culina Quality - Stainless Steel construction, superior quality material, tough-built to endure daily use by professionals or at home. Froth like a barista, mix and emulsify many different ingredients, always with great results! Latte, espresso, matcha green tea, eggnog  youll appreciate the versatility of this handy device Sleek, sophisticated pencil thin handle design makes it an elegant tool worthy of display in any kitchen. After use, cleanup is simple. AAA Battery-operated: designed for power and battery longevity (batteries not included). 100% Culina Satisfaction Guarantee!