Want some tips for keeping your building and office free from dirt and debris? Here are 2,700 of them. That's how many shoe-cleaning rubber fingertips there are per square foot on these mats. Beveled edges keep mat flat and reduce tripping hazard. Easy-to-clean design saves you time and energy. Mat Type: Anti-Fatigue Mat; Application: Indoor/Outdoor; Material(s): Rubber; Backing Material: Rubber®.