It looks ok. It dipples under the chair. I only weigh 140 lbs and once I sit down on my chair it makes an indent in the surface of the mat. Which inturn does not allow the chair to roll easily over the surface of the mat. I will be ordering new mats soon. Big dissapointment.
Mat started cracking about 2 months after we got it. Staples wouldn't exchange it because i lost my receipt. So now it just cracks and pops whenever I roll on it.
Had to take mat and place it outdoors for over a week before taking it into the office for use. The odor from the plastic was severe which initially permeated the office with the odor.