Stainless STeel 14K Gold Plated Waterproof. Medium thick Solid Hinge Hoop. With Puffy Heart Charm Drop Convertible medium hoop is our medium sized light weight high shine Puffy earring hoop. This is a statement but not so oversized to look trendy. We love this it is made of stainless steel that is hallowed out for weight. Well balanced Earring. Ultra high shine PVD plated making it waterproof, Hypoallergenic and very long lasting