These indoor door mat is made of hard polypropylene material. These durable non-slip backing keeps the doormat stick firmly in place to reduce the risk of sliding. Keep your family and you safe all the time. It can be cleaned by vacuum cleaner and also machine washable, which save your time and energy. When your entrance rug gets dirty, just shake or pat it to clean. The surface makes it easier to clean your shoes and also gives it a decorative look and texture, perfect to coordinate with your style in your house! 100% satisfaction and lifetime support. Please contact us at any time when you have any questions.