AiBOB Chair Mat for Carpeted Floors, Premium Quality Hard Material, Office Floor Mats for Computer Desk on Carpet, Easy Gride for Chairs, 36x48 MultiBrand: AiBOB Color: Multi Color Features: PERFECT FOR CARPET FLOORS: Protect your floor from scratches and dust of any kind with this perfect chair mat for carpeted floors. The office chair mat is designed for most carpet floors. EFFORTLESS ROLL: AiBOB chair mat middle layer is hard polycarbonate, which provides strong support for the chair. There are no more sinks and the wheels can roll easily. Ease of rolling between tasks promotes ergonomic