AP Products 021-54603-16 RV Aluminum Flat Trim Molding – Mill – 16 Ft.Flat molding is used when creating a seal at the transitions of exterior panels, protecting against water intrusion. It can be used on the top or sides of the RV yielding a finished, professional look. A good seal is critical for protection against water damage in your RV. Flat molding is flexible enough to conform to some curved surfaces.Insert moldings feature a channel that accepts a vinyl insert (sold separately) for covering the screw heads.This molding is made from aluminum with a mill finish. Aluminum moldings do not rust. These moldings attach with screws, require sealing tape, and optional caulking. (screws, sealing tape, and caulking sold separately)Note: This trim may have minor scratches or scuffs resulting from the manufacturing process.Additional InfoTypeFlat, InsertLength16 FeetWidth1-1/4″ColorMillMaterialAluminumWhat’s Included1x Flat MoldingWhat’s Not IncludedScrew