Product Material: Brass+Vacuum Gold Plating Product packaging: OPP transparent packaging bag (packaging bags and boxes are required and require additional payment) Product features: The substrate is made of high-purity environmentally friendly brass, and the surface is vacuum coated with gold, with a thick coating and long-lasting color retention Product Usage: Personal grooming, decoration, wedding photography, movie and television props, gift giving, martial arts performances, and more Image: All products are photographed from physical objects, and there may be color deviations due to differences in shooting techniques, lighting, or displays. The actual product shall prevail Attention: In cases of excessive sweating or high sweat acidity, please try to wipe dry after sweating to ensure long-lasting color retention Gold plated jewelry is prone to oxidation and fading. Although our product has advanced technology, thick coating, and is not easy to fade, reasonable use can still make the product color last longer.