16 Gauge 5/16′′ long eyebrow bar crafted in 316L surgical steel with 4mm multi gemmed balls – Perfect for Nipples, Eyebrow and “Other” Areas. 16 Gauge 5/16′′ long eyebrow bar crafted in 316L surgical steel with 4mm multi gemmed balls – Perfect for Nipples, Eyebrow and “Other” Areas.