Chunk Snap Charm Ring For 20 mm Standard Size Snaps, 3/4" Diameter Snap Charm Stretch Ring with Dragonfly Snap 20 mm 3/4" Diameter Mini Petite 12mm snaps will not fit this ring. Fits all major brand designers including Ginger Snaps standard size Will fit smaller fingers on index finger but probably not ring finger You are guaranteed to receive your ring with this adorable custom dragonfly 20mm snap charm - we never substitute snaps from those shown in our image.