70 In Folding Sliding Barn Door Guide Rail Set Carbon Steel Hardware Track Kit. Color: Black Material: Carbon steel Track size: 70 inches (178CM) Track splicing method: 2. Scope of application: door thickness 0.5-50MM. “2x FT orbit 4x roller 4x roller rotating bracket 2x roller holder 6x hinge 2x ground guide fastener 2x seal strip 1x screw bag 1x Specification 5x tube clamp 35mm 5xm890 Wood screws”. An unpaid case will be filled after 4 days.