Parametric "Spider" Ring Gag
thingiverse
Ring sizing, strap sizing and most other settings are customizable. I recommend downloading the file and playing with it in OpenSCAD as it takes quite a while to compile the design. Use at your own risk. I cannot make any guarantees about the safety of this design.
Download Model from thingiverse
With this file you will be able to print Parametric "Spider" Ring Gag 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 Parametric "Spider" Ring Gag.