SUPREME DIA 〈4〉 IRIDIUM 3-piece set Nib only, no accessories included. These are nibs from old fountain pens. I lack product knowledge, so details such as the age, material, and compatible pen bodies are unknown. I am unsure if they are actually usable. If you like old items, are looking for parts for remaking, or are searching for components, please consider purchasing. Please refer to the photos for the external condition. Due to long-term storage, there are scratches, some dirt, and discoloration. Please refrain from purchasing if you are sensitive or concerned about details. Returns and exchanges are not accepted. Recycled materials are used for packaging. As this is a personal sale, receipts cannot be issued. Thank you for your understanding.