My last computer chair pad cracked beneath the rollers. It was too thin for the berber plush rug. This pad is very sturdy. Hopefully it will hold up well.
We used this product for under child tables for childcare - works very well & will be durable for this application. I would agree with other posts that these would not work well (or long) with adults on chairs as they are too thin to withstand that kind of pressure. Then again they are half the price of 'good' ones so you do get what you pay for!
Not too big not too small it really does have a nice feel to it and is stiff enough for easy rolling without being hard or brittle. Just what I was looking for.