Fancy 4 Notch Circular Barbell/Horseshoe, 4 Ga Home » Circular Barbells | Ear piercing | Large gauge | Male piercing | Nipple piercing | Nipple Rings & Shields Diameter: 5/8" (16mm)Material: 316L surgical grade stainless steel Ball size: 5/16" (8mm)Gauge (Thickness): 4 (5.0mm)Type: circular barbellpriced and sold individually Retail Price: $14.94Your Price: $ Quantity: