Adjustable Sliding Barn Door Roller: Fully adjustable barn door guide, fits doors up to 75mm thick. Safety Design: Specially designed floor roller with a flat base and rounded edges protects your toes and knees from injury. Robust and Durable: The adjustable door guide is made of carbon steel with a black powder-coated finish to ensure both indoor and outdoor use. Easy Installation: Wall-mounted with screws, no door track needed. Simply adjust the rollers in the track to fit your door panel. No need to drill holes in the floor. Includes: 1 steel bracket, 2 ribbed plastic anchors, 2 short screws, 2 long bolts, 1 wrench. Color: Black Fully adjustable for doors up to 75mm thick and easy installation. Perfect for your door: Fully adjustable for doors up to 75mm thick and easily adjustable with the included wrench to secure most barn door sizes or types. Completely recessed into the floor. Special design with a bottom-cut slot to allow the barn door track to lie completely flat on the floor, and the mounting screws in the wall will be flush with the bracket to avoid jumping out and scraping against the door.