Delivering superior performance, the SuperMat is a status statement for the mainstream specialist. This chairmat with lip safeguards medium-pile carpets from wear and tear. Design allows easy chair movement with a clear roll edge. Studded bottom grips the carpet so the mat stays put. Standard lip measures 19" x 10". The Free and Clear nonphthalate, noncadmium formula offers exceptional clarity and performance. Construction does not include Bisphenol A (BPA). Mat is Greenguard Gold Certified for low chemical emissions for healthier indoor air.