The scrubbing gun comes with a quick connector adapter and an M22 (14 mm) connector. The tip of the gun is a 1/4 inch quick connector. The black accessory is the adapter. It is easy to use and removable. It can be easily mounted on the Kärcher Quick Connect spray gun. Nozzle set: five nozzles color coding in red, yellow, green, white and black for nozzles with 0 °, 15 °, 25 °, 40 ° and 65 °. Multiple options: different nozzle heads angles respond to meet your needs in different situations, such as watering flowers, washing cars, cleaning fences, cleaning roofs, etc., allowing you to clean hard-to-reach areas quickly and easily. Applications: It is also designed to be used in applications. with nozzles turbine, surface cleaner, dust brush water systems, water system cleaner, rotary couplings, water cannon foam, cleaning sets for high-pressure cleaners, accessories for gutter cleaning. Material: plastic + brass