headrest mount for ipad and ipad mini with a case

This is a set of brackets that fit the 'ipad backseat cinema' and 'headrest mount for ipad holder'. Hein0190 and Eckerput made good models but they just don't fit my kids ipad. Once you add a bulky case on it it won't fit in the narrow hook. This one has a much beefier hook and should fit models with cases 18mm deep and less.

You still need all the pieces from their models to finish the design minus the hooks.

Edit: I uploaded all the files you need to make it more 'one stop shop'.