American Floor Mats Weather Catcher Ocean Blue 4' x 6' Entrance Floor Mat with Gripper Backing Weather Catcher Entrance Mats boast a heavy-duty construction thanks to their fade-resistant polypropylene surface and durable rubber backing and borders. The WaterLock borders found on these all-weather entrance mats retain moisture to keep the surrounding floors dry while also acting as a safe, ADA-compliant transition between the floor and the mat. These rubber borders can contain up to 1.5 gallons of water per sq. yard. Weather Catcher entrance mats can be placed both indoors and under awnings outside. These 1/4" thick door mats stay strong in any environment and will clear most exterior doors. Vacuum and hose off as needed to keep the Weather Catcher Entrance Mats clean.