To use these cufflinks, simply slide them through the holes in your shirt cuffs. They're perfect for formal events like weddings, business meetings, or fancy dinners. When it comes to maintenance, clean them gently with a soft, dry cloth to keep the gold shiny and the diamonds sparkly. Avoid exposing them to harsh chemicals or rough surfaces, as this could damage the gold or the diamonds. Store them in a jewelry box to prevent scratches and keep them looking their best for years to come.