This is a formal men's accessory set that I kept as a memento of my father. The set includes cufflinks, a tie pin (with chain), and studs, all with a unified design. They have a classic feel, with yellow-toned stones in the center. The box is marked with "Quality Guarantee," but the detailed materials are unknown. Please note that I do not have expert knowledge regarding the metal components or the type of stones. Due to long-term storage, there is overall wear and tear. The condition is not very good, so please purchase only if you understand that this is a junk item, a collector's item, or a material for repurposing. [Important Notes] * Please purchase after confirming the condition. * No claims or returns (NC/NR) accepted. * Immediate purchase is welcome.