Universal LidThe faucet fits most bottles and jugs, runs, the straw is 31cm long, the bottom diameter is 2.7cm, the bottle mouth silicone inner diameter is 4.5cm, and the head diameter is 11.5cm. Fits most containers you will find on the market. Electric FaucetThe faucet requires 2 "AA" batteries for power (not included). The faucet turns any beverage container into an easy-to-use beverage dispenser without lifting heavy bottles. TURN ANY BOTTLE INTO A DISPENSERIt turns any beverage container into an easy-to-use beverage dispenser, no need to lift heavy bottles, and also prevents spills, drips, mess and waste Do not moveJust touch the trigger and the drink will automatically dispense water. No need to lift heavy drink containers. Kids can serve themselves with this automatic electric faucet. SAFE AND EASY TO CLEANMade of plastic and silicone material, easy to clean after dispensing orange juice, cola or milk.