Beer cocktail server capable of creating four types of creamy foam. - Product Name: Beer Cocktail Server - Function: Creates creamy foam - Features: Can create 4 types of foam - Color: Gray - Design: Stylish design The foam, created by approximately 40,000 ultrasonic vibrations per second, is incredibly creamy! This tabletop beer server makes it easy to create half & half beers and beer-based cocktails. Brand new, unused, and unopened. Thank you for looking.