These Vevor button badge parts include 500 sets for creating 2.25" round pin-back badges with compatible button maker machines. The set includes metal covers, mixed metal and plastic bottom parts, clear films, and blank paper components for DIY badge making. High-transparency film helps produce shiny, professional-looking buttons, while the metal and plastic components are designed for durability. These parts are suitable for most 58 mm button maker machines and are ideal for crafts, gifts, school events, and personalized projects. Machine is not included.