Large application: The adjustable floor rail is suitable for barn sliding doors, wooden doors, sliding doors, cabinet doors, office doors, etc. Good material: The soil guide of the sliding door is made of POM plastic material which has anti-corrosion characteristics, difficult to rust, good resistance to shocks and durability. Easy to install: The sliding door guide can be fixed on a door without grooves or on a door with grooves, without it being necessary to groove the door. Simple design: the door floor guide adopts a classic black modern design style, Lightweight and practical, suitable for most decorative styles. The product packaging: you will get 4pcs adjustable floor rail with 8 pcs screw fittings. Features: 1.The sliding door rail can slide easily and silently without damaging the door and soil AVE c A silent effect and will not affect your daily life. 2.The floor guide is adjustable, suitable for doors of all thicknesses and you can use it with confidence. < P> Features: Product color: black Material: Plastic Condition: 100% brand new Product size: 4.3 * 2.5 * 2.5cm Packing: 4 * Robust floor guide 8 * Screw Notice: Since it is a manual measurement please allow an error of about 1 cm.