Undoubtedly the most popular choice for service and years of service awards, die struck lapel pins offer a classic appearance. Without the use of color, metal on metal gives a traditional look whether your die struck pins are polished or antiqued. Available in gold, silver, copper, nickel and combinations of the four. Die struck lapel pins are perfect for clear-cut designs with larger text such as those often used by fraternities, sororities, country clubs and government agencies. 1. Oem/odm Yes and welcome 2. Material Iron / brass / copper / zinc alloy / 3. Process Stamped / die casting / printing / plating / painting / polishing 4. Size 1 inch to 3 inch, can be customized 5. Thickness 0.8 - 5 mm, can be customized