Easy to OperateThe kids tap automatic drink dispenser easily on a Wide Variety of Beverage Containers,turns Any Beverage Container into an Easy-to-use Drink Dispenser That Eliminates the Need to Lift Heavybottles, Also Prevents Spills, Drips, and Waste. Automatic Milk Dispenser PumpThe beverage pump needs 2 “AA” Battery operated (not included). Easy to use with one hand, and no need to lift heavy bottles. Kids can do it themselves. The dispensador automatico para bebidas can be taken along anywhere for liquid dispensing, suitable for Indoor or outdoor use. High CompatibilityThe automatic milk dispenser fits most bottles, jugs that you can find in the market, mouth diameter 2.5CM, 3.5CM, 4.5CM. It turns any bottle into a dispenser that eliminates the need to lift heavy bottles, and also prevents spills, drips, messes, and waste. Usage ScenariosThe gallon milk dispenser pump is suitable for daily life, banquets, home, kitchen, office, school, picnic, hospital, bar, and other