I selected this item without help and choice the wrong one. It was no problem to get the correct one. But it took away from feeling I had completed a task on the "To-Do" list. Be sure to know how thick your carpet is and the width of your chair base.
I use this at home at my home PC in a former bedroom carpeted with a desk chair with wheels. On top of everything I have MS & so have weak legs. The mat makes it so easy to move my chair!
good size too thin chairs makes indentations on matt. The manufacturer has a a sticker on the matt that is almost impossible to remove. Once you remove it it leaves a nasty smudge