508 x 21000
508 x 21000 = 10668000
Example of 508 x 21000 pixels banner dimensions.
458 x 21050 468 x 21040 478 x 21030 488 x 21020 498 x 21010
508 x 20950 508 x 20960 508 x 20970 508 x 20980 508 x 20990
508 x 21050 508 x 21040 508 x 21030 508 x 21020 508 x 21010