- Made out of .925 Sterling Silver.- Sterling Silver is rhodium plated for tarnish resistance.- Gold Vermeil is 3x coated with 14k gold for durable gold plating.- Completely solid, heavy, and double-sided. Chain options range from 3mm to 4mm in thickness, depending on what pendant size is chosen. By default, smaller pendants come with smaller chains. Tarnish-resistant Yellow Gold Stainless Steel Jewelry, White Gold Cuban Link Jewelry With Polished Finish, Sterling Silver Cuban Link Necklace With Polished Finish, Gold-plated Yellow Gold Jewelry With Box Chain, Tarnish Resistant Gold Plated White Gold Chain Necklace, Yellow Gold Plated Box Chain Jewelry, Tarnish Resistant White Gold Plated Chain Necklace, Custom Yellow Gold Sterling Silver Necklace, Tarnish Resistant, White Sterling Silver Cuban Link Jewelry