Carpet Chair Mats for Low Pile, 45-Inch by 53-Inch with Lip, Clear Vinyl GREENGUARD Indoor Air Quality Certified Protects loop/Berber carpet up to 3/8-Inch thick including padding For moderate office use Exclusive Anchor Bar cleats hold firmly in place yet are gentle on carpet and fingers GREENGUARD Indoor Air Quality Certified Protects loop/Berber carpet up to 3/8-Inch thick including padding For moderate office use Exclusive Anchor Bar cleats hold firmly in place yet are gentle on carpet and fingers