Adjustable with 8 different configuration options: Fully adjustable for doors up to 76.2mm thick. With 8 different configuration options, mount the floor track in a style to suit your barn door slider. Following the instructions to install the track that you think is best and works well on your doors. FLAT ON THE FLOOR AND FLUSH WITH THE BRACKET: Specially designed, this barn door track allows the board rests completely on the floor. Screws in the wall will align with the bracket to protect the barn door from scratches. Sturdy and Durable: Bracket is constructed of quality, heavy-duty steel to ensure indoor and outdoor use. The ferris wheel is made of durable plastic that can roll quietly and smoothly for a long time to avoid scratching your door. Package content: 1 steel bracket, 1 large roller, 2 small rollers, 1 key and some screws. Size:1P Size: floor guide. Guide roller for sliding door with 8 options notice Contents: 1 steel support. 1 large roll. 2 small rolls. 2 short screws. 2 long screws. 2 screws. 3 screws. 3 nuts. 1 key. 1 user manual (English language not guaranteed). Color: matte black. Durable and resistant to rust.< /p> The sliding door guide It is made of quality material, the premium steel stand is made of solid, heavy-duty steel with matte black coating for long-lasting indoor and outdoor use. The thick powder coat provides complete protection against rust and corrosion. Perfect for your door: fully adjustable for doors up to 76.2mm thick and easy to adjust with the included wrench to ensure most sizes or types of barn doors. A quiet roller that stays safe from scratches. The large roller is made of durable plastic and is specially designed for roll quietly and smoothly and avoid scratching the door. Fully recessed into the floor.