Heavy Duty Bypass Sliding Closet Door Track Hardware 60, Aluminum Pocket Door Track Rail Set, Smoothly and Quietly, for 2 Door System, Black. High Quality Materials: This bypass sliding door hardware is made of high-precision aluminum material, which is wear-resistant, rust proof, and corrosion-resistant. After testing, it can be used more than 150000 times. Max Door Weight: Track can be cut down to fit custom opening width. Up to 150lbs (68kg) per panel; Door panel thickness: 1 3/8″ and 1 3/4″; Min Door panel width: 30 1/2x2doors. Flexible and Sturdy:Commercial grade precision extruded aluminum 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: Three 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.