Silver plating (with 3-40 micron silver plating, it has the highest plating rate on the market). It is an adjustable ring. You can use it by expanding or narrowing it according to your finger - Handmade. Darkening - does not cause allergies. It does not contain lead-nickel-cadmium. Contact with chemical products may damage the silver coating on it. Products are sent boxed. Silver plated ring - johnny depp truth ring