Polarpro Mavic filter case

A small box to store 4 camera filters for the DJI Mavic Pro. It's designed for the Polarpro Cinema series, but may fit others as well.
To be used with this tool that allows taking the filter out of the case and put it on the camera without getting fingerprints on them:
https://www.thingiverse.com/thing:2469554

There is a little test piece that you can print to see if your filter would fit.

Edit 01/09/2017:
Added a version that holds 6 filters