Material use: sterling silver chain, natural freshwater pearl Size: chain length about 15cm+4cm extension chain; pearl about 6mm ♦ Please take it gently when wearing ♦ Maintenance method: 1. When not wearing it, rinse it with clean water and dry it with a hair dryer. Put it in a sealed storage bag (included) to greatly delay the oxidation time. 2. After being left for a period of time, the yellowing and oxidation of pure silver is normal. Please wipe it lightly with a silver-wiping cloth or silver-wiping cream to restore its luster. If the oxidation is serious, please hold the pearl soak to wash the silver water (please see the attached instruction card). 3. Try to avoid letting natural stones and pearls come into contact with chemical substances, and remember to rinse them out if you encounter them. Try not to wear pearl jewelry in the bath. Remember to take it off when bathing in hot springs or swimming! !