This embossed, protective vinyl mat is made for use over low to medium pile, industrial-grade carpeting. The transparent color allows the beauty of your carpeting to show through. The unique notched stud design produces a strong grip without piercing or damaging carpet backing. Protects commercial, loop or Berber style carpet up to 3/8'' thick including padding. Ideal for moderate use in home and office applications. The AnchorBar chair mat cleat system holds securely, yet is gentle on carpet and fingers. This mat comes with a limited lifetime ''No Crack Mat'' warranty.