Press the rim of your pitcher or cup against the star-shaped base up to the nozzle. The rinser shuts down once you take off the vessels. Four water spraying holes provide multi-dimension cleaning. Water saving more than 70%, also will not freeze your hand in winter. compatible with bar, restaurant, pub, household, cafes, milk tea shop, etc. compatible with red wine cup, beer cup, coffee cup, milk cylinder, beverage cup, tea cup, etc. It allows you to clean the milk deposits and coffee stain. The water sprays into the vessels and gets them clean. The water sprays 360 Degree to clean the interior and exterior clearly and stops automatically when cup is moved. Kitchen supply, saves your time. Washing performance with cold water. The pitcher rinsers will not break the glass and could clean the lipstick and other besmirch clearly. compatible with many types and sizes of beer glass/cup. Washing : High pressure washing Mounting hole size: 22mm Colour: Silver + black Material: Brass, stainless steel and plastic Package Contents: 1 * Wash Cup