Desk chair wheel chock
I had problems when flying my flight simulator. Every time I pushed on the rudder pedals my chair would roll away making it difficult. I wanted wheel chocks that I could easily slip in and out under the wheels.
I found a model originally made for a lawnmower. I resized it for my chair and it worked well, but found it a little difficult to remove once in place. Solution was to add a handle so I could easily reach down and slip it under the wheel then later pull it out..
Printed in TPU 95 it gives a good grip on the floor and around the wheels. You will probably need to do some slight resizing to custom fit your chair.
Not a fancy design but it works and is easy and quick to print. Hope you find it useful
Design by JL_Atl on MakerWorld (license: BY-SA).