5FT/152CM Sliding Door Track Kit, Internal Barn Sliding Wood Doors Rail Mount Hangers Black for Single Door,J ShapeSUITABLE PARAMETERSThe sliding barn door hardware system fit door thickness 3cm 5cm; 5FT sliding door track Kit, Suitable Max door width is 2. 5FT. ADVANTAGE Spring Door Stops, reduce noise and extend life Pre drilled rails, steel bearings New design Junction Plate, Connect Rails smoothly DURABLE & SAFEHigh quality barn door hardware kit, Premium nylon roller wheel, Gcr15 roller bearing, High strength industrial grade track, Can easily hold 100kg