PRICES MAY VARY. SUPERIOR QUALITY: Made of steel, and brushed nickel surface, with the benefits of sturdy and durable. The roller is a combination of high-quality bearings and nylon wheels, matched with 6mm thick track to improve the bearing capacity of the product. And it has undergone 120,000 tests to ensure quiet and smooth sliding. DESIGN CONCEPT: Different from the traditional hardware kit on the market, the folding door kit can greatly save you space. And the scope of application is…