Office Marshal PVC Chair Mat for Hard Floors - 36" x 48" | Multiple Sizes Available | Clear, Multi-purpose Floor Protector Non-slip hard floor protection - highly transparent - allows the aesthetic of your floor to show through Designed to prevent against wear and tear caused by office chair casters Allows your office chair to move freely while carrying out daily tasks, helping considerably reduce the risk of leg fatigue Ensures complete stability when used on hard floor surfaces Under standard use will not crack, curl, break, scratch or discolor