Body Candy Handcrafted Black Anodized Steel Nose Stud Ring to Dangle Earring 20 Gauge 5/16" Gauge size 20 gauge; .8 millimeters 5/16 inch; 8 millimeter barbell length Made with black anodized over 316L stainless steel rings Nose ring chain to fishhook earring Hand assembled in the USA; created using Swarovski crystals