US Ring Size Tool
thingiverse
Use it to determine which US ring size you or your love one is so you can design the ring you want.
Download Model from thingiverse
With this file you will be able to print US Ring Size Tool 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 US Ring Size Tool.