CD phone holder for IPhone 7 / 8 and Samsung Galaxy J5 and Xiaomi Redmi 6

I would like to have a CD-phone-holder to manage my IPhone 8 (not plus!!) and Samsung Galaxy J5 including the cases. An this is my final design for this problem.

The inner length is 74.5 mm x 14 mm (see the screenshot).

The IPhone case is the "Decoded Leather Wallet Case for iPhone" from apple.com
https://www.apple.com/shop/product/HLVA2ZM/A/decoded-leather-wallet-case-for-iphone-8-plus-7-plus?fnode=99
also
https://www.amazon.de/gp/product/B078NXXG1H/ref=oh_aui_detailpage_o05_s00?ie=UTF