This piece is special because it matches the Battleship North Carolina's powerful propellers.  It measures 4 1/2 x 4 1/2 inches and is 1/2 inch thick.  Each piece comes from the hull of the Battleship and will vary slightly.  The steel has not been altered in any way and has been cut with a water jet.  Great for display on a bookcase, mantle or desk.  Each piece comes with a signed Certificate of Authenticity.