This modern hardware simply demands attention. The attractive, commanding design is sure to enhance any barn door or sliding door at home or at the office. Add this product to your sliding door track system quickly and easily and then sit back and relax – you won’t need to do maintenance. The product is made of 304 solid Stainless Steel and has been designed to hold 240 pounds of weight. The rollers must be installed at the top of a glass or barn sliding door and the system holds 35mm – 45mm thickness. Your sliding door will be quiet and smooth when you install this simple hardware.