Flesh Ear Tunnel - 16mm, 18mm, 20mm

Simple Flesh Tunnel 

I needed some new ones and had some old genereic TPU filament, so I made a simple model and printed them my self. The model was created for 16mm and I scaled them up for 18 and 20mm. Scaling them down could work, but the walls could be to thin below 14mm. Scaling them further up should be no problem. Just scale in X and Y direction!

Have fun with the Model :)