Black Bull Steel Barrier Protection Guard are suitable for use outdoors, providing a high level of protection for work areas and traffic routes. Unlike competing steel barrier guards, the galvanised steel is done properly on these posts. The unit is one complete unit which has had the steel bend and galvanised. Other barrier posts are disconnected, galvanised, and welded back together, so the welding will rust. Pittman’s Black Bull galvanised range WILL NOT RUST. If you decide not to choose Pittman be sure to ask your supplier if their barrier posts are constructed in a similar fashion, as they will eventually rust outdoors.