High-quality material - the frame is made of 100% steel, coated with anti-rust black paint, more durable; Smooth slide - adjustable floor slide stabilizes the bottom of the door and allows the door to slide smoothly and quietly; Adjustable clamping position - adjustable floor rail for door panels from 23 mm to 50 mm thick, very suitable for almost all colors of door hardware kit; No scratches - no grooves at the bottom of the door plate, no friction between the door surface and the floor guide rail; Easy to Install - This is a wall mount that does not need to be drilled on the floor and you can easily complete the installation in a few minutes.