The Aiken collection 1-light lantern head that is mounted on top of a light post (sold separately) is constructed from MarbleX - a non-metallic durable material containing ground marble. A carriage-style lantern with lovely lines and glass roof panes. Open and charming like a southern home. Clear seeded glass style - small bubbles within the glass add a unique look and sodten the light. MarbleX material does not rust or corrode and resists damaging UV rays. It is your best choice of materials if you are seeking a long-lasting lighting fixture.