DescriptionDurable Material - Designed with an aluminum alloy holder and nylon brush, our door bottom sweeps are of great rust resistance, durable, not easy to shed, and suit all season use.Strong Seal - The Door Brush features tightly packed bristles that effectively seal the gap between the bottom of the door and the top of the thresholds or floor surface, greatly reduce the infiltration of light, air, wind, rain, and snow, prevent heat loss, control the penetration of dust and fumes.Easy Installation - Features four pre-drill holes, strong back adhesive, and included mounting screws, the brush door sweep can meet two different installation needs to further strengthen the fastening effect and prolong its service life.Helpful Tools - A great door insulation seal for all seasons. Suitable for both home and industrial use.