When installing a necklace, first make sure that the necklace is not entangled or knotted. Then, hold one end of the necklace and gently put it into the necklace box. You can protect the necklace with soft paper towels or cotton balls to avoid scratches caused by friction with other jewelry or metal objects. Before putting the necklace into the box, both ends of the necklace can be fixed on the clips or notches inside the box to prevent it from loosening or confusing. Finally, cover the box to ensure the safe storage of the necklace.