The rinser works when the utensil is pressed onto it. It sprays water under pressure into the vessel, thus managing to wash it in a few seconds. It has a deep enough container so you can rinse large, long-bodied glasses without water escaping around the rinser. It is the ultimate aid for baristas and bartenders. Dimensions 16.2 x 17.6 x 7 cm. Cleans easily. Resistant to damage. Also ideal for professional use.