Porthole Mirror Glass Round Ship Window Porthole Nautical Marine Decor 12 Inch adminDecember 10, 2023portholedecor, glass, inch, marine, mirror, nautical, porthole, ship, window The Applications Are Limitless & Endless For This Porthole Since It All Depends Upon Your Creativity & Art Level. Mirror Glass : The main portion of the porthole is made of reflective mirror glass, functioning as a functional mirror. Share