I'm Zesty Lemon/Lime Pinback Button

Every friend group has at least one zesty one. Maybe it's you? Measures 1.5 inches across.

PRO-TIP! To secure your button to a backpack or purse, slip a rubber earring back onto the pin after slipping into the fabric, then close. The button may come unclasped, but the rubber earring back should keep it in place until you can re-clasp!