Certified waterproof, the Sofia Waterproof Gold Button Stud Earrings are made from durable 18K Gold PVD Coating meaning they are waterproof beach-proof and life-proof - and showcase a beautiful ridged design. These earrings make the perfect gift or treat to yourself.Certified Waterproof by the Birmingham Assay OfficeDesigned & personalized in the UKComes with Reusable Suedette Jewelry PouchCARE INSTRUCTIONKatie Loxton is a brand that's driven by providing affordable luxury products that are of the highest quality. Follow these top care tips to slow down the tarnishing to our jewellery & accessories: Clean using a dry and soft cloth. Do not use silver cleaner or silver dip & try to avoid overcleaning. Store jewellery away individually to keep chains tangle and scratch-free. Plated jewellery will tarnish over time. To prolong its shine and avoid premature tarnishing, keep it away from harsh substances like detergents, bleach, ammonia, chlorine, perfumes, body creams, and hairspray.