I DO NOT like that you put a label on this product that cannot be removed even with harsh chemicals. I used goo gone and WD-40 and the label still would not come off.
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!
I use this in home office on short pyle rug. The office chair rolls easily and the carpet is protected. Static is not too bad. I had same or similar one for about 3 years before this and it began breaking up into pieces under the chair rollers. I hope this one lasts longer.