Green Lantern Ring:
This ring was specifically designed for 3d printing in FFF/FDM & Resin SLA,DLP etc.
The current size is generic, there are over 64 ring sizes in the US/CA scale. The amount of time is would take to save each size is ridiculous. Not to mention the file size would be massive.
If you do not have the ability to size this model, no worries. Purchase the model and shoot me a message. I usually reply pretty quickly and it will only take me a few minutes to get you the updated file.
If you have any questions, just let me know.