A strong natural occurring fiber used to create stiff bristles perfect for scraping dirt and mud from shoes and boots; natural fiber cells absorb water, captures dirt and debris keeping your floors safe from outdoor grime Doormat measures 18x30-in and is 1/2-in thick providing a lower profile to prevent tripping and provide an easy door clearance; non-slip PVC backing to prevent slipping and to keep your rug in place These durable rugs aren't just for your front porch or entry way, use on patios, in a garage, laundry room, mud porch, entryway - any entry or exit with high traffic would benefit from these indoor/outdoor rugs