BEVELED DEGE DESIGN: Easily roll your chair up or down without leaving grooves or dents in the wheels. This heavy-duty curved edge design not only functions to prevent the chair cushion from breaking, but also aesthetically displays and protects the floor underneath with its virtually transparent surface, while maintaining the perfect position 5MM TEMPERED GLASS: Hasipu uses 5mm thick tempered glass chair cushions and with its exclusive beveled edge design, our premium glass chair cushions transition smoothly to carpet or hard floors like no other manufacturer 1000LBS WEIGHT CAPACITY: The stylish tempered glass chair mat has a maximum weight capacity of 1,000 lbs, ensuring that your floors are protected from the scuffs and damage typically caused by hard plastic rolling office chair wheels. This elegant ergonomic tempered glass mat is easy to use on both carpet and hard floors such as tile, wood and vinyl EAST TO CLEAN: The fully transparent glass office chair mat is very