Material: brass Treatment process: electroplating Type : Necklace Style : Men's Packaging: Individually packed made in China Perimeter: 51cm (inclusive) - 80cm (inclusive) Color: 8mm Color: gold thick 8mm long 60cm weight about 60g Material: brass + vacuum gold plated surface with a small amount of real gold quality assurance [Features]: The substrate is made of high-purity brass, the surface is vacuum-plated with gold, the coating is thick, and the color retention is lasting. Product keeper: Store the jewelry separately and mix it with other accessories or hard objects to avoid grinding the surface layer; 2. Avoid contact with sweat for a long time, thus corroding the surface; 3. Please remove the product during bathing and washing to avoid direct contact with acid and alkali substances; 4. Use clean water, detergent, soft brush to restore the zircon brightness (grinding, scratching will not be able to recover); 5. When collecting, please use cotton cloth or facial tissue to remove surface sweat and dirt and then store it in sealed bag.