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| It's the nap of the carpet. It is manufactured this way. I have a large plastic pad over carpet in my office. The top is smooth, of course, since my chair must roll over it. The underside has lots of small nubs that are designed to hold the pad in place. However, I need to pull the chair off and pull the pad back a few inches every few days. Outside of anchoring the chair to something permanent, or installing spike teeth somehow under the chair, I doubt that you will stop the movement. | |
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