EconoMat All Day Use Chair Mat for Hard Floors, Flat Packed, 45 x 53, BlackThinner, lightweight, non studded EconoMat for hard floors is an excellent value for anyone looking for an all day use office chair mat to protect wood, tile, laminate and other hard floor surfaces. Easy glide rolling surface provides smooth office chair movement to help minimize stress and strain on users back, legs and feet, and protects floors from caster wear, spills and heavy traffic. Free and Clear non orthophthalate, non cadmium formula