We all know just how much fun it is to finally be turning one at last. So when you go out to celebrate either your birthday or a friends you need these fun 21st Birthday Party Buttons to wear to let everyone know you are now legal to drink. The 21st Birthday Party Buttons contains 5 per package with the sayings of 21 N Legal Go Ahead And Card Me Buy Me A Shot Its My 21st This is How 21 Looks and the bigger one in the center say Finally 21. We also have many other 21st Birthday decorations to help let everyone one know your finally legal. Printed metal buttons. Sizes: 2-1/3 and 1-1 1/3.