"PRIME-LINE" FOLDING DOOR HARDWARE KIT *For 72" 4 panel systems *Includes 1 steel track, 2 top pivot brackets, 2 top pivots, 2 roller guides, 6 non-mortise hinges, 2 bottom pivot brackets, 2 spring snuggers, 2 door aligners, 2 door knobs &1 set of fasteners *For 7/8" to 1-3/8" thick doors up to 35 lbs. per panel *71-3/4" overall track length *Top hung surface mount steel track in off white *Reference National Mfr. No. 176-586 *Boxed