Needed this size for a medium pile carpet...and this fits the bill! The bottom of the mat has interspersed diagonal pegs...not the long pointy pegs...and works well with the carpet; keeps the mat in place. I was not able to purchase this mat in the store; The glue that held the mat into a roll...use rubbing alcohol to take it off the mat. Great purchase!
These were exactly what we needed in our office-good and sturdy quality but still just a basic chair mat. Lays flat and is the perfect size for the area around your chair. Also protects the carpet from spills if you happen to be one who tends to eat lunch at your desk.