Regarding the maintenance of jewelry and precautions: Please do not wear it when washing your hands, face or taking a bath. Do not place the jewelry in a damp environment. Do not come into contact with products similar to chemical reagents, such as perfume, laundry powder, laundry liquid, soap, etc. When not in use, store it in a storage bag or box to reduce air contact and delay oxidation, thereby extending the lifespan of the jewelry. It is a normal phenomenon for silver jewelry to turn black and oxidize after long-term exposure to air. You can wipe it with toothpaste or a silver polishing cloth. Jewelry is fragile. Please do not touch or rub it. Take good care of it.