Using this keychain is super easy. Just attach it to your keys and you're good to go. It not only helps you find your keys easily but also adds a cool look. When using it to open a beer bottle, make sure to use proper leverage to avoid any damage. As for maintenance, you can wipe it with a soft cloth to keep its powdercoat finish looking great. Don't expose it to harsh chemicals or extreme temperatures, as this might affect its quality.