Using this key chain is super easy. Just attach it to your keys, and you're good to go. It can also be used as a wristlet for a more fashionable look. When it comes to maintenance, keep it away from water for long periods as the cotton might get damaged. Also, avoid scratching the zinc - alloy closure. If it gets dirty, you can gently wipe it with a soft, dry cloth. That's all there is to it!