Description: Efficient Beer Foaming - Ultrasonic high-frequency vibration of produces beer foam as delicate as cream, silky taste, and endless aftertaste. Easy to use - One key to start the beer foamer, foaming in one second, and automatically shut down after 20 seconds, one-handed operation, convenient and quick. Simple design - Beer aerator is easy to carry, small in size, and can be used in parties or bars. Adjustable interface - Beer foaming agent is suitable for most canned beer cans on the market. It has a long battery life and is an indispensable foaming tool for beer lovers. Easy to clean - beer starting block has a uniquely designed structure, you can move the upper and lower parts up and down, and clean the lower part. Specification: Size: 9.4x6.4x7.5cm / 3.7x2.51x2.95inch Material: Plastic Package Includes: 1 Piece Beer Foam Maker(4 Pack) Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!