The most petite, miniature, hexagon stud earrings you'll ever find. Butterfly closure. 3.5 mm x 3.5 mm Our materials make for an amazing, high quality, seamless, jewelry piece with longevity. Items are brass plated with 24k gold, 18k rose gold, or rhodium and finished with a protective coating. A little secret we'll keep between us: it looks way more than it costs.