Premium Material: The sliding door system is made of exceptional carbon steel and nylon, which are wear-resistant, corrosion-resistant, rust-resistant, sturdy, and durable for long-term use. Easy to Install: Designed for a flat floor surface, no groove is required for the door; simply attach two screws to the bottom trim and then slide the roller guides into place. Convenient Design: The smooth rolling allows for easy sliding. The bottom of the guide rests flat on the floor and does not damage the door. The quiet design ensures that the floor slides smoothly and silently. Wide Range of Applications: The adjustable sliding door rollers are suitable for door widths from 30 mm to 84 mm and can be used in bedrooms, wardrobes, bathrooms, living rooms, kitchens, pantries, restaurants, garages, and more. Package Includes: You will receive 1 x guide; 2 x screws; 1 x hex key; 2 x ribbed plastic plugs; all necessary hardware is included, sufficient for your daily use.