Does your dive buddy or diving significant other seem to have everything they could possibly want when it comes to dive equipment? Full set of dive gear, backup computer, pony bottle system, camera, metal detector etc, well how about a key chain! Bet they don't have one of those, now do they! Tell them it will unlock the door to conversation by letting people know you're a diver. This handsome brass and copper Mark V Helmet Key Chain makes the perfect gift for that diver in your life that has everything (but a key chain).