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, Nitrox gear, back up computer, pony bottle system, camera, metal detector etc, well how about a Nitrox Tank Lapel Pin! Bet they don't have one of those, now do they! Tell them that it will let people know you're a diver. This Nitrox Tank Pin makes the perfect gift for that nitrox diver in your life that has everything (but a Nitrox Tank Lapel Pin).