Oddly enough, I just bought some for my Aeron classic 2 weeks ago. They're about 10x better than the default casters on mid-height pile carpet with no/low paddi

Oddly enough, I just bought some for my Aeron classic 2 weeks ago. They're about 10x better than the default casters on mid-height pile carpet with no/low padding and hardly move at all. It's not perfect, but almost usable. And this is before I'm able to get a (carpet-covering) chair floor mat for one of the custom floor mat, preferably not PVC or glass, but made from one of the harder plastics. I have 2 105x30" Uplift tables in an overlapping L configuration (due to the small size of the room) that needs a rolling surface. I've seen price quotes ranging from $300-1000 USD for custom mats. Bonus points for a mat and wheel material combination that doesn't create terrible static (ESD) problems.