DIYHD 6FT Sliding Barn Door Hardware Compass Hollow Cut Wheel,Black Barn Door Tracl Hardware only,not including door panel Material:Steel,POM;Color:black;Suitable for door thickness:35-45mm;Can bear MAX weight 90kg Package's including:Wheel*2,Stopper*2,Track*1,Track&wall connector*5 Floor guide*1,Anti-pad*2 Track had been pre-drilled 16"(406mm) apart holes Track's two end had been pre-drilled small holes for track connector to make a long track