Product name: Roman black square double layered European and American fashion necklace Material: Titanium steel Size: pendant 1.6*1cm, chain length 39cm and 43cm, extension chain 6.5cm Packaging: gift box Color: gold Product weight: 8g Remarks Statement: We use vacuum furnace electroplating for color plating, and the material is also selected 316 titanium steel, no discoloration, no rust, no allergy, no black, wear-resistant, green and environmental protection