High Quality Materials&Finish: This bypass closet door hardware is made of high-precision galvanized steel, which is wear-resistant, and corrosion-resistant. After testing, it can be used more than 100000 workcycles. Max Door Weight: Closet door track can be cut down to fit custom opening width.Max loading up to 60lbs (27kg) per panel; Door panel thickness: 3/4 and 1-3/8" Flexible and Sturdy:Commercial grade precision extruded galvanized steel box track ensures door will not jump from track, convex rails on track allow flexible and free rolling. Built-in fascia hides the sliding hardware from view.When sliding, it is smooth and silent, without making annoying noises. Excellent Structure: Closet door rails wheel hangers ensure that all wheels can withstand the weight of the door, Quick release locking tab allows easy door installation/removal without dropping track.