I use this stuff for over 6 years, it is not cheap, sure, but worth the investment because your gear will be very well protected with these flights injected plastic hard ..
Do not be afraid to abuse them, stripes and blows, they cash in all.
The only drawback is that I know them at the attachments of these straps, binder type of school kid, they tend to tire and become difficult to open.
I already buy 2 games. in 10/12/13/16/22, although there are cheaper there is also less strong. , Op