Tablethookz Tablet Holder - Spacers

I bought the Tablethookz tablet holder off Amazon for use on flights. In order to accommodate multiple depth airline tables, they purposely went big and the bottom portion of the holder is unsupported in the air.

I mocked up 5mm and 2mm spacers to get a tighter fit and to provide more support for the holder. The spacers are hooked so they slide on easily but stay on.

I printed in PETG, 40% infill.