4x4 Deck Post Caps
thingiverse
In order to make this stick, I had to use a brim on both the inside and outside.
Download Model from thingiverse
With this file you will be able to print 4x4 Deck Post Caps with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 4x4 Deck Post Caps.