Premium Materials: The sliding door frame is made of 100% stainless steel. The black finish is sturdy and corrosion-resistant. It fits door skins up to 2.5 cm to 5.5 cm thick. Easy to Push: The adjustable roller guide is located at the bottom of the door, and the pulley glides smoothly and makes no noise. The bottom part is rounded, can effectively guarantee safety. No friction: No need for groove at the bottom of the door cover, no friction between the door surface and the sliding door floor guide. Easy installation: It is wall-mounted hardware, no need to drill holes in the floor, it will not damage the door, installation is completed in minutes. Double pulley Small pulleys that fit the wall save even more space. Large adjustable pulleys ensure the stability of the door. Upgraded pulley stopper Small wheels fit perfectly against the wall, saving more space. Polyurethane wheels do not scratch the door when sliding. Sliders Adjustable pulleys are available for doors from 2.3 to 5.5 cm thick. The outer ring of the double pulley is made of high-quality silicone, which is extremely soft, so the door will not be scratched. The double pulley is filled with durable nylon material, which is stronger and not easy to deform. The lower seat of the double pulley is made of hard carbon steel, which will not corrode and securely fixes the door. Adjustable The left and right adjustable design effectively prevents the door from shaking back and forth. The door's life is extended and the noise caused by the door swinging is reduced. Drill holes on the wall, no need to drill holes on the floor and do not damage the floor heating structure Shipped quantity: 1 piece Size as shown