850 x 4200
850 x 4200 = 3570000
Example of 850 x 4200 pixels banner dimensions.
800 x 4250 810 x 4240 820 x 4230 830 x 4220 840 x 4210
850 x 4150 850 x 4160 850 x 4170 850 x 4180 850 x 4190
850 x 4250 850 x 4240 850 x 4230 850 x 4220 850 x 4210