Using this ignition key is super easy. Just insert it into the ignition slot as you would with a regular key. To wear it around your neck, simply put the chain over your head. When it comes to maintenance, keep it away from harsh chemicals and extreme temperatures. If it gets dirty, you can gently wipe the acrylic pendant with a soft, dry cloth and the brass chain with a mild metal cleaner. Also, make sure to handle it carefully to avoid any scratches on the pendant or damage to the chain.