To use the Elisa Pendant Necklace, simply open the lobster clasp and put it around your neck. It's perfect for daily wear or special occasions. As for maintenance, avoid contact with harsh chemicals like perfume or cleaning agents as they can damage the metal plating. After wearing, wipe it gently with a soft cloth to keep it shiny. Store it in a jewelry box to prevent scratches. Remember, because of the unique nature of the material, exact colors and patterns may vary a bit from the picture you saw online.