【Strong and durable】 The sliding door floor guide is made of high-quality iron and nylon and has a high-pressure black powder coating. The black coating resists wear and tear and offers a longer service life. 【Easy to slide】 The smooth bearing glides easily, allowing you to open the door without difficulty. The underside of the floor guide is flat and does not damage the door or floor, gliding smoothly and quietly. 【Size range】 The size of the sliding door guide is 115 * 50 * 65 * 5 mm (see illustration for specific dimensions). The adjustable sliding door roller is suitable for door widths from 30 mm to 84 mm. 【Easy to install】 Install the sliding door system without having to groove the door. Simply attach the screw to the bottom bar and insert the slide rail. All necessary hardware for easy use is included in the delivery. 【Additional DIY options】 With 8 different designs, this wall-mounted door rail is suitable for any barn door. Add fabric strips to make it quieter. Strong and durable: Made of iron and nylon with a high-pressure black powder coating, the floor guide offers high wear resistance and a long service life. Smooth gliding: The smooth bearing ensures quiet and easy gliding. The flat underside protects the door and floor from damage. Adjustable size: Suitable for door widths from 30 mm to 84 mm. Dimensions: 115 x 50 x 65 x 5 mm, see product image for details. Easy installation: Can be installed without milling the door. Simply attach the screw to the lower bar. All necessary mounting parts are included in the delivery. Versatile: With 8 designs, ideal for barn doors. DIY adjustments such as fabric strips ensure even quieter operation.