For those who are wondering, the mirror is plastic, and while this may give a little look 'cheap' to the object I personally think it's still better security level because if dropped unlike glass-it will not hurt you.
Personally I rather thin hands (pianist hands?) And bring my bike with hard leather gloves do not pose any problems but I'm still on the penultimate notch setting. But I guess people with slightly larger hands may not even use that object.
A therefore recommend that women and men with small hands)
To answer the other user that stated that in case of heavy vibrations on the road (eg randomly paved like Paris-Roubaix) it is difficult to see what happens before. Especially since in such cases, it is less attentive to what happens in front of ...
I would also like to add that during long trips (over an hour, the strap that goes over the palm may cause some discomfort, no real pain, just discomfort)
Personally I find this most useful accessory, completely essential for those using public bicycles on which it is impossible to set a fixed mirror. It's not perfect but after a good adjustment once on the bike before every ride, it is a very pleasant and valuable assistance that avoids turning in the flow of traffic.
By cons attention this product is relatively fragile. If you're lucky you can probably put the pieces together.
