If the disappointment was only on that point but not this one must also realize that the cover is far too large for Logitech K310 keyboard type.
For 10 euros c of abuse is 4 euro discount on C we find better! [...]
If I had properly unpack the product I would return immediately, but I'll have to keep this "trick" ca serve as lesson to me to think 3 times before validating an amazon order.
This is the third product for which I have things to complain about, I had not protest, but there is the c ponpon!
Verdict: Error on my part to have rushed to order ...