Delicate Screw-Back Stud Earrings feature LINNY CO’s signature screw-back, flat-back design for secure, all-day comfort. Where to Wear:Everyday wear, spring outfits, ear stacks, gifting, school, brunch, or whenever you want a soft pop of color. Features: 18K gold-plated, surgical-grade stainless steel Secure screw-on flat back Designed to not poke or irritate skin Hypoallergenic — great for sensitive ears Waterproof and tarnish-resistant Lead, copper, and nickel free Tested by QIMA Testing Limited and passed ASTM F2923-20, confirming the earrings are nickel-safe, corrosion-resistant, and hypoallergenic