The 44 Auto Magnum cartridge replica is machined from solid brass and copper bars. It is a novel key chain container perfect for keeping rolled up cash. It has a threaded copper bullet end with a rubber seal keeping the contents clean and dry. The rubber o-ring also helps keep the copper bullet securely in place. This unique little stash box can also be used for keeping medication or breath mints handy on your keys, belt loop, or in your purse. Copper is the traditional 7th Wedding Anniversary gift and the modern gift is Brass. Perfect! Have yours personalized with a message and your Anniversary date! Know anybody getting ready to retire from Law Enforcement? Here's an idea for you... Personalize your message then stash a "C" note inside... This product is crafted with pride in the USA exclusively by Sunshine Products USA.