Material : Aluminum and Mirror. Nickel Silver Finish (As shown in Picture). Size : Measures 20″ Dia & Mirror is 15.5″ Dia. Working porthole which opens and closes. Excellent hinged wall decor for any nautical or pirate theme decor. Hand finished some imperfections possible. In any case of any discrepancy in our product, please contact to us, before leaving negative or neutral feedback. THANK YOU FOR SHOPPING.