This classic "hugs and kisses" (XOXO) stampato set is made of high quality stainless steel.The hoop earrings add to a great finished set. Wear this versatile set with any outfit for any occasion. Excellent Quality, satisfaction guaranteed at manufacturer's price. High quality stainless steel has high resistance to rust, corrosion and tarnishing, which requires minimal maintenance. Stainless steel is one of the most bio-compatible metals, so stainless steel jewelry is amazingly hypoallergenic because of its anti-allergic properties. As one of the strongest of all jewelry metals, it does not oxidize and will be very durable. Please feel free to ask me any question.