The Vevor bi-folding sliding barn door hardware kit is designed for four 18" doors and provides smooth, quiet operation in closets, pantries, laundry rooms, and other space-saving applications. Built from carbon steel with a black powder-coated finish, it is made to resist corrosion and humidity in everyday indoor environments. The single-track, 2-piece spliced design supports doors up to 330 lbs for dependable heavy-duty performance. Clear installation guidance helps simplify setup for homeowners and DIY users. Doors and wooden panels are not included.