Fixed shutters came for me not in question, and again quick release probably barely - so I have informed me about the time 5-kant closures. Great because of the 6 Allen is too large and the 5 is too small - ergo brings a thief Allen nothing as you need those little special key.
The set presents as an ideal combination of speed and safety when switching on the go.
I can only recommend! 5/5 stars
