Arrived in one day. It doesn't slide and the thicker mil made a big difference. My chair is not on rollers and it leaves very slight dents in the plastic which do not last long. I have not seen this mat in retail stores so I'm glad I bought it on line.
What else can I say about an overprices piece of plastic laying under my chair? It serves its purpose--protects my carpet--and is actually very boring. I wish it did some tricks. =P
The mat is clear but it is thin and the wheels from my chair have created created indentations limiting the movement of the chair as early as with the first use.
Good mat. Works as expected. I don't like how it didn't come in any sort of box or container just the mat. This means it came with some pre-existing scratches and dirt and for that I have to take a star off.