WildKlass Jewelry Grade 23 Titanium Eyebrow Ring with Gem Balls (Sold Individually) Implant 23 Grade Titanium Eyebrow Ring is feather light and highly corrosion resistant. Titanium is one of preferred material for primary piercings since it is virtually Nickel Free. Lightweight and comfortable to wear. Material : 316L Stainless Steel Thickness : 16GA,Length : 8mm,Ball Size : 3mm Exceptionally High Quality Jewelry!