FLOOR: Our barn door running tracks are specially designed to keep the bottom bracket flat on the floor, preventing scratches from screws, bolts, or nuts, providing greater stability and a clean appearance. No grooves or holes are required in the floor, making it ideal for carpets or tiles. Easy and Quick Installation and Adjustment: Includes two sliding door tracks with two screws and eight mounting options. Detailed instructions and tools are included for simple installation. Adjust and tighten the screws at the bottom to properly position and secure the three wheels. Sturdy and Dependable: Features a high-strength solid steel base with a black powder-coated finish that complements various decor styles and ensures long-lasting visual appeal. High-precision POM rollers leave no marks and enable smooth, quiet, and wobble-free operation of the sliding door. General Safety Instructions: The sliding door tracks are rust-resistant and durable, suitable for various indoor door applications. Designed for single or double barn doors, they can be used in bedrooms, closets, bathrooms, living rooms, kitchens, pantries, dining rooms, and garages.