Polytene Office Floor Chair Mat, 47"x35",Hard Floor Protection with Rectangular Shaped,White 100% pure polytene material - No oisonous and tastele, better flexibility and durability Designed for hard floor surfaces only- not suitable for carpets or half rug.Under standard use will not crack, curl, break, scratch or discolor. Scuff and Slip Resistant Textured Top Surface. Allows your office chair to move freely while carrying out daily tasks, helping considerably reduce the risk of leg fatigue. Low chemical emissions into indoor air Multipurpose Use: ChairMat, Wood Floor protector, Computer/Office Mat, and easy operation:Flatten the chair mat with the square side facing the floor. Step on the mat to flatten it into the floor.Place a chair atop the mat and it is now ready for use. Anti-slide pad can be provided.Please contact Tikteck customer service by email if you need it.