The 38mm round metal pin back button badges are specifically designed for the G-Series machinery, meaning they only work with this model. They are made of high-quality metal, ensuring durability and resistance to corrosion over time. The rounded shape and pin back closure provide a comfortable fit without causing discomfort or irritation to users. These badges are versatile and can be easily customized with your company's logo, making them an excellent promotional tool for branding and marketing purposes. With the G-Series machinery, you can now effectively promote your products and services with these stylish and functional badge components.