Magnetic filter holder for Yongnuo Speedlite YN560 III flash

After printing you need to glue 4 magnets with a diameter 8mm and a thickness of 2mm. I use 5 minute Epoxy. The blitzadapter.stl sits tight on the Yongnuo flash. You can clamp a gel filter to the blitzadapter with the filterhalter.stl. Also you can attach other light modifiers like the grid (wabenfilter.stl). I have not tried to fit it on any other flash than the YN560 III.