Express yourself by pinning your buttons on your clothing, hat, backpack, purse, or more! These are standard locking pinback button badges. Please note: Our buttons are not waterproof. The metal will rust when exposed to moisture over time. The ink on the paper can also fade after being exposed to lots of sunlight over time. • Round steel pin back button. • Features a steel safety pin style back. • Material - tin-plated steel • Size - 2.25" X 2.25"