?????????????????? Solid steel, fine black powder coated surface, anti-corrosion ensures years of beauty and longevity. Slide Like Butter, Ball bearing roller slide smoothly and quietly, Tested Beyond 100,000 Rolls. All items have been multiple inspected before on market. ??????????????????????? Our hardware suitable for both modern and rustic style, you can apply for aisle, garage, kitchen, bedroom and so on. ??????????????? Fit up to 40″ Wide Door;Fit Door Thickness 1-3/8″ 1-3/4(3545mm);Door Weight Capacity 220lbs. Package Includes:(2)3.3ft Rail, (5)Spacer, (2)Rollers, (2)Door Stops, (1)Floor Guide, (1)12inch Handle Set. NOT INCLUDE DOOR???????????????????????? We provide step-by-step graphic & text installation parsing manual, you can also get soft online copy and professional installation guide from our online service. ????????????????????????????? Specialize in sliding door and hardware many years, if there anything missed or broken, pls let us know, we are whole day online to solve your problem.