Doorstopper-Ring

Couldn´t find a matching kind of O-Ring to replace the “bumper” part from my heavy (metal) doorstopper.Would be odd to buy a new one, just because the upper ring got broken through the years.And when buying O-Rings (sealing rings) that size, just for a doorstopper - they are quite expensive compared to the doorstopperSo I decided to create one as a spare part.Inner Diameter is 78mm, while the Ring itself is 13mm.Printed in TPU of course, everything else would make no sense (and a lot of noise) 😅