850 x 21040
850 x 21040 = 17884000
Example of 850 x 21040 pixels banner dimensions.
800 x 21090 810 x 21080 820 x 21070 830 x 21060 840 x 21050
850 x 20990 850 x 21000 850 x 21010 850 x 21020 850 x 21030
850 x 21090 850 x 21080 850 x 21070 850 x 21060 850 x 21050