Adjustable Roller Position: Fully changeable distance fits a wider range of barn door panel, up to 3 inches thick (using a single wheel source), also works well withDIY thin doors, heavy barn doors, any size or type.[Flush to Floor]: Our barn door roller guide has been specially designed to allow the bottom bracket to sit absolutely flat on the floor without scratching at the edge of screws/bolts/nuts, more stable and more beautiful.No groove required for the door, no drilling on the floor, perfect for carpet/tiled floor.[Easy Quick Installation and Adjustment]: Wall-mounted sliding barn door floor guide with two screws, offers 8 different assembly options, detailed instruction/tool required, can be easily and effortlessly installed.Simply adjust and tighten the screw at the bottom to attach the 3 roller wheels where you feel best.[Sturdy and Reliable]: High-strength solid steel base with black powder-coated finish complements any decor style, providing visual appeal for many years to come;High precision non-marking pom roller ensures smooth and quiet door sliding without swinging/wobbling.[Universal Applied Stay Guide]: Sliding door guides/sliding grilles and durable, suitable for all kinds of interior and exterior doors, top slide for single/double barn doors, can be used in bedrooms, wardrobe, bathrooms, living room, kitchen, pantry, restaurants, Garages, etc.