340 x 20000
340 x 20000 = 6800000
Example of 340 x 20000 pixels banner dimensions.
290 x 20050 300 x 20040 310 x 20030 320 x 20020 330 x 20010
340 x 19950 340 x 19960 340 x 19970 340 x 19980 340 x 19990
340 x 20050 340 x 20040 340 x 20030 340 x 20020 340 x 20010