8 in 1 option and easy to install - This product offers 8 different mounting methods for easy installation. Simply fix two screws into the bottom bar, then position the roller guides. Durable and high quality - The sliding door track is made of high-quality carbon steel with a black coating that resists wear and corrosion, ensuring a longer service life. Smooth operation - The rollers allow the door to slide easily and quietly. The flat bottom floor guide helps prevent damage to both the door and the floor. Adjustable sliding door floor guide track - This kit is ideal for various sliding doors. The adjustable floor guide is suitable for door thicknesses ranging from 30mm to 84mm. Easy to install - Setup takes only 5-10 minutes with the included hardware. Doors glide smoothly back and forth without noise. The design helps protect walls by minimizing door impact. Installation instructions: 1. Measure the door thickness. 2. Adjust the roller in the floor guide to ensure proper clearance. Insert the spacer if needed, then tighten the screw at the bottom of the guide. 3. Secure the guide to the wall using the provided screws. Specifications: Material: Carbon steel Dimensions: 11.1 x 6.2 x 4.9 cm Mounting options: 8 in 1 (as shown in image) Compatible 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 anchors 2 x Threaded rods