The long necklace are made of chain no stimulation to the skin not allergies -free nickel-free and free. The safe product gives you a better wearing experience. The sweater chain necklace can be used as great gifts for women ladies teachers mother lovers and best friends etc. silver necklace can show your unique tastes and it could make you look more charming and attractive instantly become the focus of the crowd. Keep the fashion jewelry necklace away from the chemicacid alkali and corrosive substances don't wear it when you sleep or take a bath use a soft cloth to wipe it if it is wet.