56mm / 55mm (2 1/4 inch) button parts
The 56mm is the most requested size. Large & often used as promotion button, name badge or thank you gift. The possibilities are very diverse:
Pinback button, magnet button, keychains, (magnetic) bottle opener or pocket mirror.
The magnetic buttons are standard for mounting on metal surfaces. If you want to wear them on clothes, combine them with counter magnets - clothing magnets.
*magnet (built-in strong Nd-magnet)
*key hanger *bottle opener *pocket mirror