VEVOR 8FT Sliding Barn Door Hardware Kit, 330LBS Heavy Duty Barn Door Track Kit for Double Doors, Fit 3.7-4.3FT Total Wide and 1.3"-1.8" Thick 2 Door Panel, with Smooth & Silent Pulley (J Shape)Durable Corrosion-Resistant Hardware330lbs Weight CapacityEffortless InstallationFlexible FitSilent Smooth Sliding PulleysGentle Pulleys: Protecting Your RailItem Model Number: 004-3.0M,Fit Door Width : 3.7-4.3 ft / 1.12-1.32 m (2 Doors Total Width),Max Loading Bearing: 330 LBS,Product Dimensions: 96.1'' x 1.5'' x 0.2'' / 2440 x 39.24 x 5.6 mm,Net Weight: 18.7 lbs / 8.47 kg,Fit Door Thickness: 1.3 - 1.8 in / 32 - 45mm,Main Material: Carbon Steel