A Porthole, Sometimes Called Bull's-Eye Is A Generally Circular Metallic Frame Used On The Hull Of Ships To Admit Light And Air. Though The Term Is Of Maritime Origin, It Is Also Used To Describe Round Circular Openings On Armored Vehicles, Aircraft, Automobiles And Even Spacecraft etc | On A Ship, The Function Of A Porthole, When Open Is To Permit Light And Fresh Air To Enter The Dark And Often Damp Below-Deck Quarters Of The Vessel. It Also Affords Below-Deck Occupants A Limited View To The Outside World When Closed In Ancient Times | Our Replica Is Still As Functional As Ancient Times But Not 100% Air-Tight / Air Proof. It Is A Classy And Quality Accent Piece To Add To Any Nautical Themed Room. This Charming Nautical Port Is Both Functional And Stylish. This Beautiful Porthole Will Accent Your Nautical Wall Decor Perfectly. Place This Item In Your Lake House, Bar, Or Any Other Nautical Themed Room You Can Imagine. This Mediterranean-Style Wall Mounting Decor Ornament Is Perfect Choice For Living Room, Home Or Shop, Office, Pirate Themes Room, Seaside Gardens, Patio, Tiki-Bar, Floating Tiki, Nature Adventurous Wild Camps, Vans etc. Possibilities Are Endless & Limitless.