1 end of the rail is tapered swedged to fit inside the non-swedged end of a 2nd post to form 1 continuous rail. 17-gauge 1-38-in diameter galvanized top rail. Unique in-line galvanization process delivers a triple layer of corrosion resistance and creates a smooth shiny finish that is unmatched in terms of strength and durability. Can be cut to required length with a hacksaw or pipe cutter. Manufactured in the USA.