This is a set of tie clip and cufflinks. The material is Mexican abalone shell. Being a natural material, each piece has a unique appearance, and the expression changes depending on the viewing angle and the way the light hits it. It comes in a case. It has been stored for a long time but is unused. The case has some damage, so it will not be included. The stone is Mexican abalone shell. It is also known as peacock abalone. The reason it is called peacock abalone is because the central part has a color similar to a peacock's feathers. Mexican abalone is harvested from the Gulf of Mexico to the southern coast of California. However, jewelry-grade shells like these are no longer being harvested, and similar shells from New Zealand are often used these days. Although unused, it has been stored by a private individual for a long time. Please purchase only if you can confirm and judge from the photos. If you are concerned about minor details or are looking for perfection, please refrain from purchasing.