GrassWorx(TM) Clean Machine Door Mats provide a perfect combination of style and function for every doorway in your home. Made with AstroTurf® grass-like scraper blades to keep your home's entry neat and clean. This door mat features tiny plastic blades that grab, hold and hide dirt beneath the surface. This easy to clean, durable and plastic mat is designed to withstand all kinds of weather, allowing you to keep it out all year long. Cinder finish. 18" x 30".