Office chair wheel delete (11mm casters)

I've been working from home for the last several months and I felt myself constantly readjusting my chair because I prop up my feet and I slide back. I've been using them for 2 months, no problems so far. 

Increase wall count, there is a small hole in the center of the model so walls are going to be printed in the center from the very bottom to support the shaft. 

Mine fit really well and snugly, if too tight just sand the interference ridge, if too loose print with higher scale.

This will make your chair lower, if you already have your chair fully up then I do not recommend these.