Unfortunately I have lost by a windy lock a bike, so I wanted something stable purchase. I have informed myself and came across the VdS seal. This castle has exactly this seal, so I ordered one each for the whole family. Well it turns out that 2 of the 4 locks have the same key. For me, the question is that a coincidence? If you look at the key bit, then you can see 4 grinding points, definitely too little key variants. Mir is too uncertain and the locks go back again.