WINSOON; Condition: 100% brand new; Made of steel; Frosted black finish; For double door with a thickness of 1-3/8 in. and 1-3/4 in. and up to 230 lbs. USED FOR: This 4ft bypass barn door hardware kit is ideal for openings up to 48 in. wide; openings wider than 48 in. require multiple tracks or you could choose other properable size. ALL MOUNTING HARDWARE INCLUDED:2×4FT Flat Track,4×Steel Hanger,4×Anti-jump Pad,2×Floor Guide,4×Door Stopper,3×Lag Bolt,3×Spacer,3×Bypass Bracket Suit,16×Plastic Washer; The track has been predrilled holes for 16 inch stud; ONLY the hardware is for sale, DOOR IS NOT INCLUDED.