Three roll, table top, laboratory mill by eweka-apparatebau (germany), serial # 1650804. Features ceramic 4" wide x 2" diameter rolls as part of modular device which mounts to drive unit along with other devices offered by manufacturer, type sm, serial # 8868, 110 volt 400 watt drive. Unit mill requires end plates and scraper blade, includes homogenizer and ss three roll mill attachment. See video demo on our youtube channel at this link https://youtu. Be/h3b1lug6fik