Protective vinyl chairmat offers resilient protection to prevent wear and tear and extend carpet life. Medium weight chairmat for frequent plus use on carpets up to 1/2" thick, Medium/High Pile. Choose a higher pile chairmat if usage is over 6 hours. Easy-glide rolling surface provides effortless chair movement. Free and Clear® non-phthalate, non-cadmium formula promotes a healthy work environment while offering exceptional clarity and durability. Smooth beveled edge for easy carpet to mat transition. Studded bottom surface for superior gripping power on carpets.