870 x 3780
870 x 3780 = 3288600
Example of 870 x 3780 pixels banner dimensions.
820 x 3830 830 x 3820 840 x 3810 850 x 3800 860 x 3790
870 x 3730 870 x 3740 870 x 3750 870 x 3760 870 x 3770
870 x 3830 870 x 3820 870 x 3810 870 x 3800 870 x 3790