Adjustable function: Fully adjustable rollers ensure smooth and safe sliding. The bearings provide a very quiet and smooth glide as the door opens and closes. Adjustable double rollers to accommodate thinner panel. Convenient Feature: The sliding door guide can be used with 3 inch thick doors, suitable for all barn door brands. 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 shaped to provide a flush fit with the wall and floor. Convenient to use: Built-in door guide bearing provides ultra-smooth rolling, easy to operate. Unique design: carbon steel frame with black bearing roller surface, screw fit for maximum durability. If you really need a quality functional door guide, the ball bearing wheels are smooth and quiet. Specifications: Material: Carbon Steel</p > The color： black Thickness: approx. 0.5cm / 0.2in Suitable: for 76mm thick sliding door Size : approx. 10.5 * 4 * 5cm / 4.1 * 1.6 * 2in PackageList:1 * Floor Guide，1 * Screw Bag Accessory Note: The data is all measured manually, please allow 1-3cm error, due to the light and display difference, there will be some color difference, the actual object received shall prevail.