(Rancilio Patent) This steam wand offers 2 options, allowing you to heat the milk, or to heat and froth at the same time, for a soft, compact foam. The valve is operated by rotating the knob just 25°. Turning it upwards, it opens and remains in this position. By turning downwards, the user can regulate valve operation. When released, the valve closes automatically. In Vietnam, we support for Rancilio Classe 5 USB & Rancilio Classe 7 USB as the standard features.