deflecto CM17743 60 x 60 Clear ExecuMat Intense All Day Use Chair Mat for High Pile Carpet High quality, heavy-weight mat engineered for exceptional performance. Extra-thick, intensive, all-day use chairmat for carpets over 1/2" thick, Plush/High Pile. Perfect fit for big &amp; tall users and heavy executive chairs. Studded, protective vinyl beveled chair mat for highest pile/plush carpeting with padding Maximum clarity and transparency, allowing the beauty of carpeting to show through Smooth beveled edges for easy roll on and roll off Textured top surface is slip and scuff-resistant Unique notched stud design grips carpet without piercing or harming carpet backing