A shoe mount for your gopro. Intended for paramotoring to take cool shots of you and your machine! Just slide it under your laces and tie your shoe, very easy!
UPDATE: make sure you secure the mount high enough up your shoe that it does not flex with your foot as you run. I had one crack as I flexed my foot.
It may need adjusting for your slicer and printer settings. I had to file it a little to get the Gopro to slot in.
You will need to glue the M5 nut in place too.