Deflecto EconoMat Chair Mat, Non-Studded for Hard Floors, Straight Edge, 45" x 53", Black (CM21232BLKCOM) Protective black vinyl chair mat prevents wear and tear on your chair, while protecting hard floor surfaces such as hardwood, Tile, laminate, linoleum or concrete Perfect chairmat for ongoing daily usage at home, Office or any commercial environment Non-studded bottom chairmat surface provides superior gripping power that enables your mat to stay flat as you roll. Extended lip provides protection while your chair is rolled under your desk Straight edge enables seamless transition from chairmats to hard floor surface Free and clear non-phthalate, non-cadmium Material formula promotes a healthy work environment, while offering exceptional clarity and durability