This is a barn door floor guide. The design ensures the floor guide sits on the floor without scratching the floor. Manufactured with carbon steel, ensures and years of longevity. Protects doors from scratching and ensure smooth sliding. Features - Color: Black. - Material: Carbon steel. - Size: 12.00X6.50X4.00cm/4.72X2.55X1.57inch. - Adjustable: Fix the position of the roller and then tighten the screw in the bottom of the floor guide so that the roller will be fixed in the position. - : In the bottom of the floor guide, there is a groove which can protect the floor from scratching by the screw. - Easy to install: Mount to the wall with screws, and required for door. By adjusting the position of the roller in the track to fit your door panel. No need to drill holes in the floor. - Smooth polished chamfered edges, bracket and screws sit flat on floor, door and floor needn't grooved, working quietly. - Adopts precision production to the stable characteristics and high reliability. Package list: 4 x Barn Door Floor Guides