8-in-1 option and easy to install - There are 8 different mounting methods that allow for simple installation. Just fix two screws into the bottom bar, then slide the roller guides into place. Durable and high quality - Our sliding door track is made of high-quality carbon steel. The black coating resists wear and corrosion, providing a longer service life. Smooth operation - The smooth-rolling mechanism allows the door to glide effortlessly, making it easy to open and close. The flat bottom floor guide helps prevent damage to both the door and the floor. Adjustable sliding door floor guide track - This floor guide is designed for sliding doors and works as a complete door guide assembly. Ideal for various sliding door applications. Multifunctional barn door bottom floor guide - This adjustable roller floor guide is suitable for sliding doors with different thicknesses. Features: - Easy to install, typically within 5 to 10 minutes, providing well-crafted hardware support. - Doors move smoothly back and forth with minimal noise. - The bottom channel design helps protect walls and extends the life of barn door hardware by reducing door collisions. - Adjustable to fit door thicknesses ranging from 30mm to 84mm. How to install: 1. Measure the door thickness. 2. Adjust the roller in the floor guide to ensure proper clearance. Slide the adjustment strip in place, then tighten the screw at the bottom of the floor guide. 3. Secure the unit to the wall using screws. Specifications: Material: Carbon steel Dimensions: 11.1 x 6.2 x 4.9 cm Mounting options: 8-in-1 (as shown in images) Suitable for door thickness: 30 to 84 mm Color: Black Package includes: 1 x Floor guide 2 x Screws 1 x Hex wrench 2 x Ribbed plastic pegs 2 x Threaded rods