For doors 1-3/4" thick, weighing up to 125 pounds each. Precision extruded aluminum bypass track features intergraded fascia that hide hangers from view. Can hold paint or be covered with matching millwork if desired. 3-wheel hangers with 1" [25mm] dia. wheels ride smoothly and quietly on convex shaped rails with single point contact. Set contents: (1) 134Ftrack length, (4) 1120 hangers, (1) 2134 door guide, (1) 2155 door stop, (2) 30 satin nickel flush pulls, (1) 1712 adjustment wrench, and mounting screws.