688 x 21000
688 x 21000 = 14448000
Example of 688 x 21000 pixels banner dimensions.
638 x 21050 648 x 21040 658 x 21030 668 x 21020 678 x 21010
688 x 20950 688 x 20960 688 x 20970 688 x 20980 688 x 20990
688 x 21050 688 x 21040 688 x 21030 688 x 21020 688 x 21010