Package contains: 50 sets of clear buttons with pins (includes 50 x round covers and 50 x matched backs with pins); Button diameter :5.7 cm / 2.25 inches; They are individually packaged and then placed in a large bagRepeated use: take your own pictures and print them out to create your own personalized button; You can also change different style as you likeEasy to use: easy to assemble without machine's assistance, snap them together correctly, then pinch up and around in both directions until you heard a loud snap, then tugged on the pin to see if they were snapped togetherDesign Your Own Button Pin: personalize button pin with special words, photo papers, figures, make your own badges, also very useful for companies, schools, factories to design their group badgesWide Application: instant button badges are suitable forcrafts, school projects, and as a wonderful gift for birthday parties and weddings, appropriate for designing badges for schools, companies, factories