1、Durable Metal: These pin back button parts adopt metal material, the metal shell and back pin are durable and sturdy in your daily use. 2、100 Set: You will receive 100 sets of button making supplies, including metal covers, plastic bottoms, and transparent protective films. 3、Multi Purpose: These round badge button parts are perfect for DIY custom pin buttons, create unique handicrafted buttons for campaigns or advertising promotion. 4、DIY with Creativity: This button pin badge kit allows you to design your own inserts and print them out to create your personalized button. 5、Perfect Gift: These button maker supplies can help you make unique gift and memento for your family, friends, classmates, and colleagues, etc. Item Type: Pin Back Button Parts Material: Iron Specification: 100 Sets Product Features: Badge DIY, Making Meaningful Gift in Specific Situation 100 x Cover 100 x Clip 100 x Sheet of Film