Adjustable Function: Fully adjustable rollers ensure smooth and safe sliding. The bearings provide a very quiet and smooth glide when the door opens and closes. Adjustable double rollers to fit a thinner panel. Practical Function: The sliding door guide can be used with doors up to 3 inches thick, suitable for all brands of barn doors. Countersunk screw design to make our floor guide rest on the floor, with no gap between the bracket and the floor, ensuring no damage to the floor. Easy to Install: This floor guide is easy to install. Just fix 2 screws on the bottom plate, adjust and tighten. Our floor guide is made of carbon steel and perfectly formed to provide a flush fit with the wall and floor. Convenient to Use: The built-in bearing of the door guide allows for ultra-smooth rolling, easy to use. Unique Design: Carbon steel frame with black surface of the retaining roller, screw adaptation for maximum durability. If you really need a quality functional door guide, the ball bearing wheels are smooth and quiet. Product Description Specifications: Condition: 100% Brand New Material: Carbon Steel Color: Black Optional: 1# Double Roller Bearing, 2# Double Roller Bearing, 3# Double Roller Thickness: Approx. 0.5cm / 0.2in Suitable: For 76mm Thickness Sliding Door Package List: 1 * Floor Guide 1 * Screw Bag Accessory Note: 1. Please allow 0-1in error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Product Color: Black Product Size: 120*50*60MM Delivery Quantity: 1pc