Floortex Ultimat Polycarbonate Square Chair Mat for Hard Floors & Carpet Tiles (48" x 48") -FR1212119ER

Polycarbonate material: Same material used in the manufacturing of bullet proof glass and airplane windows Lies flat instantly: No waiting to unroll like PVC Chair Mats Why polycarbonate? No cracking, no curling, no dimpling, no yellowing, no smelling