[Tempered Glass] 36" x 55" Glass Chair Mat, Heavy Duty Hard Floor Mat with Round Corner and Polished Edge, Office Chair Mat for Carpet Office Home Hardwood Floor DeskBrand: Koonmi Color: Transparent Features: Highly Transparent Glass Mat: The glass office chair mat for carpets is made of 0. 15" thick high quality tempered glass, capable of withstanding over 1000 pounds of pressure, ensuring long lasting durability. It provides excellent transparency, allowing your carpet's pattern to shine through while offering protection Protective Contour Design: The rounded corners and polished edges of the carpet chair mat