The Hardest working doormats in the World. Clean Machine branded doormats and bootscrapers are exclusively made with Genuine AstroTurf scraper blades which have been keeping homes clean for over 45-year. Trap dirt, snow, grass and mud before you track it into your home, car, truck RV, or cabin. This "portable-inch Bootscraper, size 17.5-inch by 10.25-inch by 2.75-inch in Cinder, utilizes the scientific cleaning breakthrough mimicking the natural cleaning power of grass. These genuine AstroTurf scraper doormats and bootscraper are made from flexible, yet durable polyethylene. The patented manufacturing process creates a grid pattern of thousands of small plastic blades that provide an unparalleled cleaning surface that scrapes shoes clean cleaner, in fact, than any other doormat great for any door or throw in your car or truck for the soccer games or on the job. The average 18-inch by 30-inch doormat holds/hides 2-pound. of dirt per week. Clean Machine Bootscrapers and Scraper Mats: Resists mildew and moisture; made with Genuine AstroTurf is great in snow or hot weather; made from polyethylene, made in the USA, and is easy to clean, just shake or hose off with water.