870 x 3700
870 x 3700 = 3219000
Example of 870 x 3700 pixels banner dimensions.
820 x 3750 830 x 3740 840 x 3730 850 x 3720 860 x 3710
870 x 3650 870 x 3660 870 x 3670 870 x 3680 870 x 3690
870 x 3750 870 x 3740 870 x 3730 870 x 3720 870 x 3710