Placoot Office Chair Mat for Hardwood Floor, 55"x63" Large Size Computer Chair Mat, Desk Chair Mat, Large Anti-Slip Floor Protector for Home Office Dark GreyBrand: Placoot Color: Dark Grey Features: Large Size DesignThe size is 55"x63". It can cover your work area to the greatest extent and better protect your floor. No longer have to worry about the chair easily rolling to the floor and causing damage. Anti slip stabilityThe back of chair mat is mde of upgraded adsorption material, which is super anti slip. So when using, be sure to tear off the film on the back and stick it firmly on the hard floor to