Innovative PET chairmat offers a totally green alternative, being made from more than 128 recycled beverage bottles. Textured top surface resists scuffs caused by chair casters. Hard rolling surface allows easier chair movement. The slightly tinted mat provides maximum durability to protect your low-pile carpeting from caster wear, spills and heavy traffic. Studded back grips carpet securely so no slippage. 100 percent recyclable chairmat also offers a class straight edge.