WildKlass Jewelry Grade 23 Titanium Horseshoe with Balls (Sold Individually) Implant 23 Grade Titanium Horseshoe 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 Available in 5 sizes. Exceptionally High Quality Jewelry!