Hey, if you've got a Salsbury Industries aluminum mailbox and need some extra keys, this is exactly what you're looking for. This box comes with 50 key blanks, all made from solid brass so they won't bend or break easily. They're designed specifically for the standard locks used on Salsbury's residential and commercial mailboxes. So whether you're a property manager, a homeowner with multiple family members, or just someone who tends to lose keys, this pack has you covered. Salsbury's been making quality mailbox stuff since 1936, and they're ISO 9001:2008 certified, so you know these aren't some flimsy copies. They're the real deal. Keep a few spares handy, give some to neighbors, or just stash them in a drawer for a rainy day. No more worrying about getting locked out of your mail!