These are the toughest, most durable adhesive floor mats out there.  These are 4 mils thick and have a strong adhesive that keep them in place.  They are printed with "DEALER MUST REMOVE PROTECTIVE FILM".  These are the same mats that automotive manufacturers and dealers use to protect their products.  Put them on freshly cleaned carpets to protect your work.  The rolls are 24 inches wide by 300 foot long.  Use the dispenser rack for easier application.