Premium Malt's Kami-Awa Server 2020 Limited Edition Gold I opened the box to take photos, but the item is unused. The "Kami-Awa Server Gold 2020" attaches directly to the can and uses ultrasonic vibration to create foam. Because the beer does not pass through the server, there is no need for cleaning. The box has dents and wrinkles. Please only purchase if you don't mind.