COMPATIBILITY AND SIZE: This pressure washer lance is compatible with Kärcher k2 k3 k4 k5 k6 k7 and must be used with the gun and the pressure washer. The size of this lance is 54 * 4 CM. ADJUSTABLE NOZZLE 140 BAR: You can adjust the spray mode by rotating the nozzle, or you can pull the nozzle to select high pressure or low pressure. Maximum pressure: 150bar / 2175psi. The cleaning speed of the adjustable nozzle on the spray gun is 40% faster than the cleaning speed of the standard nozzle. EASY INSTALLATION: This lance must be connected to the gun, and then the gun is connected to the hose. The lance is part of the gun and cannot be directly connected to the hose. It can be used with high-pressure water guns and Kärcher pressure washers. SAVE CLEANING TIME: The pressure washer lance has higher efficiency, more performance, and more practicality. Using this lance can quickly and easily clean dirt and save cleaning time. WIDE RANGE OF USE: The pressure washer lance is suitable for most