The Ace Studs are the most versatile member of our studs collection. Petite enough to fit in almost any ear piercing and perfect for when you just can't be bothered to change your earrings all the time. * 14K Gold Filled or 925 Sterling Silver studs with a 2mm or 5mm ball   * Tarnish resistant, hypoallergenic, waterproof, and sensitive skin-friendly