Fashion Crystal Necklace: The handmade necklace is charming and fashionable. Unique design and well-made, adding beauty and elegance to you. Specifition: Chain Length: 400-450 mm or 15.75-17.72 inch; Chain Width: 40 mm or 1.57 inch; Weight: 138g or 0.30lb. High Quality Material: Environmentally friendly material, copper alloy, lead-free & nickle-free, safe for skin, no harm to health. Fine Jewelry: The necklaces for women trendy is suit for dress up,exquisite jewelry for women wear. Maintenance: Keep your necklace away from the chemicals,acid,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.