Quality is good for the price. Chair rolls well. I knew that I needed more thickness due to the padding beneath the carpet. This works well for now although it will not be a long term fix.
Works fine not too big not too small priced OK and is protecting my carpet. Don't know how long it will last as I only bought it a month ago but again it seems to be doing fine.
it took three days to flatten out. it did come quickly. it slides a couple inches every day even on the carpet. I wish I'd spent more to get something solid.