Chair Gliders
thingiverse
We have a few chairs with steel rods on the bottom, they have these gliders around them to prevent any scratching. They were made out of not very flexible plastic so some of them broke over time. Our chairs have a 10mm rod on the bottom, but you can scale them to fit your chair. I would not use filament which is very flexible, semiflex is a better choice.
Download Model from thingiverse
With this file you will be able to print Chair Gliders 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 Chair Gliders.