The narrow nozzle is just perfect for our narrow window. The cleaning works like our big windows so well that here Fesnterputzen can even be fun. The joy of the clean-proof is always anew large. We use the nozzle to small mirror car windows, to clean narrow windows and small smooth tile surfaces. The quality is as you would expect from Kärcher very good. For us a useful accessory that everyone should have the will edit narrow and narrow surfaces with the Kärcher window cleaner.