8-in-1 option and easy to install - There are 8 different mounting methods that can be easily installed. Just fix two screws in the bottom bar, then pull the roller guides in place. Durable and High Quality - Our sliding door track is made of high quality carbon steel. The black coating resists wear and corrosion and provides longer service life. Easy to slide - The smooth roller can slide easily, allowing the door to open without difficulty. The bottom of the floor guide is flat and does not damage the door or the floor. Adjustable Sliding Door Floor Guide Track, Floor Guide Sliding Door Guide Assembly, Door Guide - Sliding Door Kit - Ideal for all sliding doors. 8 in 1 Floor Guide Adjustable Sliding Barn Door Guide, Wall Mounted Door Bottom Floor Guide Black. Multifunctional Barn Door Bottom Floor Guide Adjustable Roller Floor Guide for Sliding Doors. Features: - Easy to install, just 5-10 minutes and you have well-crafted hardware. - The doors move smoothly back and forth without noise. - Opening at the bottom of the channel helps protect your wall and extends the life of your existing barn door hardware by reducing door collisions with the wall. - Adjustable and suitable for doors with thickness from 30mm to 84mm. How to install: 1. Measure the thickness of the door. 2. Adjust the roller in the floor guide to ensure there is enough space for the door. Slide the film inside, then tighten the screw at the bottom of the floor guide. 3. Mount it on the wall with screws. Specification: Material: Carbon steel Dimensions: 11.1 x 6.2 x 4.9 cm Mounting methods: 8 in 1 option as shown Suitable for doors with a thickness of 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 rod.