Brown polypropylene 3" x 2" floor mat for wiping dirt and water from shoes is suitable for indoor and outdoor use * Made of fast-drying needle-punched polypropylene fiber fabric covering crush-resistant rubber ridges in a diamond pattern * 1/4" to 3/8" thick bi-level surface helps scrape dirt and water from shoes, and holds it below shoe level to keep shoes clean * SBR backing for abrasion resistance with 20 percent recycled rubber * Certified slip resistant by the National Floor Safety Institute