COMPATIBILITY AND SIZE: This pressure washer lance is compatible with Krcher k1 k2 k3 k4 k5 k6 k7 and should be used with the gun and pressure washer. The size of this lance is 54 CM. ADJUSTABLE NOZZLE: You can adjust the spray mode by rotating the nozzle, or you can pull the nozzle to select high pressure or low pressure. 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 should be connected to the gun, 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 Krcher high-pressure water guns and pressure washers. SAVE CLEANING TIME: The pressure washer lance has higher efficiency, more performance and more practicality. Using this lance allows you to quickly and easily clean dirt and save cleaning time. WIDE RANGE OF USE: The pressure washer lance is suitable for most cleaning, such as car maintenance and cleaning, cleaning garden floors, and cleaning moss and dust on roads and walls.