I wouldn't buy this again. It constantly moves since the spikes on bottom are so small. My chair wheels dent the vinyl and create grooves so it's difficult to move the chair.
It's too soft. my chair doesn't roll smoothly. While in your store your whole mat inventory was in a pile on the floor in no order. With no employee in sight I had to dig through the pile to find the right one which turned out to be the wrong one.