1800 x 12000
1800 x 12000 = 21600000
Example of 1800 x 12000 pixels banner dimensions.
1750 x 12050 1760 x 12040 1770 x 12030 1780 x 12020 1790 x 12010
1800 x 11950 1800 x 11960 1800 x 11970 1800 x 11980 1800 x 11990
1800 x 12050 1800 x 12040 1800 x 12030 1800 x 12020 1800 x 12010