Notrax brush steps 109 Series carpeted entrance mats are placed at the entryway of a commercial building. They are commonly used in commercial and high-traffic areas to help trap dirt, moisture and debris from shoes, preventing them from being tracked further into the building. These entrance mats have a double rib design that performs the scraping function of the mat to collect dust. They have a vinyl back to prevent them from slipping or moving. These mats are needle punched for prolonged service life and come in blue, brown, charcoal, hunter green, red and black colours.