When opened so all three connected parts are visible, it measures 18.5 x 5.5 inches. It's 1.1 inches thick.
Closed it measures 9.2 x 5.5 x 2.2 inches. It weighs 1 pound, 11 ounces.
Bab al-Yaman (Gate of Yemen) is the main gate of Old Sanaa's fortified wall.