Feature: 1. Durable Material: These pin back button parts are made of tinplate and plastic, providing rust resistance and long-lasting durability. 2. 100 Sets Included: This set includes 100 complete button making kits, each consisting of a metal cover, plastic back, and transparent protective film. 3. Wide Application: These round badge button components are compatible with button maker machines, allowing for creative DIY projects. 4. Secure Back Pin: The sturdy metal shell and pin back ensure reliable attachment to clothing, bags, and accessories. 5. Ideal for Gifting: Create personalized buttons as unique gifts or keepsakes for family, friends, classmates, and colleagues. Specification: Item Type: Pin Back Button Parts Material: Tinplate, Plastic Set Size: 100 Sets (Each set includes one upper badge cover, one lower badge cover, and one transparent film) Product Features: Badge DIY Package List: 100 x Upper Cover 100 x Lower Cover 100 x Transparent Film Sheet