Believed to have been introduced by Al-Husayn II ibn Mahmud, although some sources, such as Abdel-Wahab, claim that it was in use three centuries earlier, the flag was rectangular in shape and divided into nine stripes, the middle one green and double the size of all other bands, while the others alternated between yellow and red. Featured in the center of the green stripe was the Zulfiqar, the legendary Islamic sword of Ali, with the blade in white and the hilt multicolored. The red and yellow stripes each contained five equidistant symbols, whose order was alternated between each stripe. These symbols were divided into two categories: one red six-sided star voided with a disk of a different color in the center—either a red star and green disk or a white star and blue disk—, and a large disk voided in its lower right by a small disk of different color, with the combination being either a small red disk within a larger blue disk or a small yellow disk within a larger green disk. The first yellow stripe contains three red stars and two blue disks. The second stripe, red in color, contains three green disksand two white stars. The third stripe (second yellow one) is identical to the first, with the exception that the star in its center is white, while the fourth stripe (second white one) is identical to the 2nd stripe.