Finish : Brass Polished Finish. Size: Outer Diameter- 20 inches, Glass Diameter- 13.5 inches approx. It’s perfect for people who decorate their homes with a nautical item. Working Porthole Open and Close. It has holes for wall mounting. Excellent Hinged Wall Décor for any Nautical or Pirate Theme. All Work is Handmade. Good Piece Of Collection.