LED Lenser Flashlight Diffuser

This is a diffuser created for the LED Lenser P7.2, but will fit any flashlight with a 37mm diameter head.
I created this to test transparent PETG filament from extrudr and the results are great.
The normal version has a wall thickness of 1mm, which works great for transparent materials. I also created a 0.5mm version if you want to use non transparent materials.

The design of the diffuser differs from usual designs, because the flashlight i used has a focus functionality. With the little b