This is a small white rectangular aluminum porthole that weighs 9 pounds. The outside of the frame measures 26 1/4 x 10 1/4 inches. The frosted glass measures 22 x 6 1/4 inches. On the back, the raised flange measures 23 1/4 x 7 1/2 inches. The three latches move freely – one is loose – and the arm that holds the window open works; the frosted glass is original and has a crack.