Tabcat cat tracker cover holder

The original tabcat rubber covers tend to break over time so I ended up making up a 3D-print replacement in TPU.
Its designed for the original (round) tabcat trackers not the latest oval ones.
Unlike the original covers it is set up pass a cat collar through the holder before adding the tracker. You may need a bit of force and a small screwdriver to get the tracker in but it won't fall out afterwards. I printed as SOLID (ie 100% infill) TPU as I wanted maximum strength.
Openscad file provided if you want to mess with parameters.