LINNY CO jewelry is safe for sensitive ears, light weight and made to last. Made from 100% surgical-grade stainless steel, LINNY CO is always copper and nickel free. Discover your go to, waterproof staple with our micro-screwback stud earrings. Meticulously crafted with premium surgical stainless-steel materials, these micro-studs epitomize fun and durability. Offering both style and security, their innovative screwback design ensures a snug fit for everyday wear. Perfect for adults and kids.