Floor guide material: Adjustable sliding door track made of high-quality plastic, sturdy and durable. Practical floor guide: Fully adjustable sliding door track positions the floor guide at the correct distance for any door thickness. UNIVERSAL FLOOR TRACKS: Sliding door tracks work perfectly with all types of barn doors to prevent the sliding door from moving away from the wall. PERFECT FLOOR GUIDES: Adjustable sliding door tracks serve as additional protection to stabilize the barn door and prevent swinging. Practical floor guide: Floor guide for sliding doors, quick and easy installation, good stability, suitable for barn doors and sliding doors. Coin slot Slot door installation, exquisite shape and light weight. Very simple and beautiful design. No groove. Slotless door installation, practical and aesthetic, suitable for doors of any thickness. Easy to install. There are two operating modes to choose from. If you need to adjust the position, simply loosen the screw accordingly and