70” Bi-Folding Sliding Barn Door Hardware Track Kit for Four 16.5” Doors, Top Mount Installation, Heavy Duty Roller, Smoothly and Quietly, Black(Door Not Included). See pictures for measurements. Package List: 2 x 35inch track, 4 x pulley, 2 x pulley fixator, 4 x pulley base, 5 x spacer, 2 x floor guide, 6 x hinge, 1 x Sealing Strip. All necessary parts are included. DOOR IS NOT INCLUDED. Product Advantage: Compared with traditional barn door hardware, bi-folding door hardware track is space saving and can be used in a variety of living situations, such as closet, pantry, etc. This top mounted bi folding barn door hardware fits door thickness from 1″ to 1-3/4″. And each door should not weigh more than 88 lbs. The total width of the door panel should be track length – 4.