DIYHD 12FT Stainless Steel Ceiling Mount Double Sliding Barn Door Hardware Hardware only,not including door panel Material:Stainless Steel 304,POM;Surface:Brushed;Suitable for door thickness:35-40mm; Each two rollers can hold one door panel MAX weight 90kg Package's including:Flat roller*4,Stopper*4,6FT Track*2,Track&wall connector*8,Track connector*1,Floor guide*2 The track is not pre-drilled 16" holes,can not be used for studs wall