Desktop caliper & ruler holder

I like to keep my calipers, ruler and references handy when designing and prefer a desktop holder. So as a self-development exercise and to reduce desk clutter I used my budding CAD skills to take a cut at making a bespoke model. Nearly got what I wanted on my first try but did manage to get it on the second try and this is the result. Since I had a bit of unused space on the holder I added a SD card slot. 

This is printed with Prusament Lipstick red filament and variable layer height.