To use these rings, simply slip them onto your finger. They're great for cosplaying as an Alchemist from Kamen Rider Gotchard or just showing off your love for the series. When it comes to maintenance, keep them away from water and chemicals to prevent tarnishing. Wipe them gently with a soft cloth if they get dirty. Remember, these are fashion items and are non - refundable, so choose the right size carefully. And enjoy free shipping if you're in the USA!