Basic 50mm center cap for aluminum + model file!

When changing my summer wheels, i broke the old original center caps. 

So I designed some new ones. At first I made a complicated file then I made a super simple one for testing purposes. 
The outer diameter of the cap is 50mm and the inner is about 42mm. I actually printed them in pla and they lasted an 2 seasons and then I sold the wheels. 

Thereby, the pictures are not good cause I no longer have the wheels in my possession so had to search through my photos to find some pictures with the center caps. 

Just found the design file in my CAD software and figured I might as well share if anybody can use them. 
I have also added the .step file so you can modify them as you like. :)

Enjoy!