400 x 10500
400 x 10500 = 4200000
Example of 400 x 10500 pixels banner dimensions.
350 x 10550 360 x 10540 370 x 10530 380 x 10520 390 x 10510
400 x 10450 400 x 10460 400 x 10470 400 x 10480 400 x 10490
400 x 10550 400 x 10540 400 x 10530 400 x 10520 400 x 10510