The valve also fits on it and I was able to try around a bit then also still inflating at the gas station. A small hook but it has. The valve is screwed onto the thin, normal bicycle valve and that's it. It has no hooks or so, then it could press on the underlying valve (So to speak, only a small plugged-empty pipe). The stupid thing is that the automatic pump system on the gas station so that the pressure can not examine and therefore not inflated automatically.
I then tentatively simply pressed on the system OK and it has simply pumped in so pressure. But then one must however check the tire and pull off in time, without having to have a control over, because the system then pumps simply continue as long bursts up to something or the maximum capacity has been reached. :)
If you have a system that pumps really only when the pressure can also be measured, then the valve will not engage. Therefore, it made a star deduction. At least you should point out. For systems that simply can drauflos pumps so to use it, then you know how much pressure but just not in it is. In any case, but that is better than pumping by hand, one just needs to watch out.
With this small reservation, I can live and expensive part is also not, so it is quite useful to me.
