It allows you to cleans the milk deposits and coffee stain. The water will sprays into the vessels and get them cleans. Features: Simply press the rims of your pitcher or cup against the star-shaped base to engage the nozzle. A perfect tool for your bar, restaurant, pub, household, cafes, milk tea shop, etc. Multi angle sprays washing, faster and cleaner, one press immediately sprays washing, pick up automatically close. Versatile appearance, easy to cleans, no rust. Easy to cleans and does not occupy space. Specifications: Type: black, silver (optional) Recommended hole diameter: 2.2cm Diameter of washing cup nozzle: 11.2cm Suitable for cupware with diameter less than 11cm Material: ABS+ stainless steel + copper Package size: 150 * 150 * 150mm / 5.9 * 5.9 * 5.9in Package weight: 429g / 0.9lb Packing List: 1 * Automatic Cup Washer 1 * Shells