Milliard Large Rubber Boot Tray and Mudroom Doormat, 32x16 - Wavy Pattern A must have for construction workers, snow shovelers, outdoor explorers, home gardeners and anyone else that isnt afraid to get dirty. Made from thick weather-resistant rubber. Designed to trap dirt and moisture and keep it in place. A great item to pair with the Milliard Heated Foot Pad. Keep your boots warm and dry!