Deflect-O CM15443F 46 by 60-Inch Rollamat Studded Beveled Mat, Medium/High Pile Carpet, Clear Studded, protective vinyl, beveled chair mat for medium/high pile plush carpeting 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