CCJH 36 Bi-Folding Sliding Barn Door Hardware Kit for 2 Doors, Slide Smoothly Quietly, Black Track J Shape Roller, No Door. [Durability and Weight Capacity]: Solid steel roller hanger and High strength industrial grade flat tracks hold MAX. 330 lbs door, durable for long life, excellent moistureproof and rust-resistant. [Quiet and Smooth Operation]: Super silently nylon wheels which ensures rollers slide smoothly and quietly on the track, makes the door fully cushioned when closed to protect door and keep safety. [Save Space for Small Space]: For space-saving benefit, ccjh folding door hardware kit is great option for both homes, offices, narrow hallways and as well as smaller apartments, blending modern design with rustic appearance. [Easy to Install]: CCJH barn door hardware offers professional instruction and customer service to solve all installation problems in time, needs MIN. 6″ space above the door, fits from 1-3/8″ to 1-3/4 thick door. Well Complete Package: Bi-folding door kit-NO DOORSplicing 36 track, 2x J-shape rollers, rotating shaft, hinges, all hardware needed for folding door kit are included. Note:Rail Size > door opening width +6. 5.51 inches x 17.63 inches x 3.62 inches. Weight: 7.28 lb. 3ft for 2 Doors. 17.63 x 5.51 x 3.62 inches. 2 rollers, 3ft track.