I'm round rings cut from steel fence wire. Theirs were flat due to it being cut from plastic pipe. That would be awesome, being able to snap it all together like that. Grr..... And mine is Helm's Deep style too. Split at the front and back for riding a horse. Mine is still in the works (being made by a friend, allegedly!), in the meantime I'm borrowing another guy's hauberk who can't fight due to working on weekends. I wear a padded gambeson under it as well. Hot as heck but surprisingly effective.