720 x 29280
720 x 29280 = 21081600
Example of 720 x 29280 pixels banner dimensions.
670 x 29330 680 x 29320 690 x 29310 700 x 29300 710 x 29290
720 x 29230 720 x 29240 720 x 29250 720 x 29260 720 x 29270
720 x 29330 720 x 29320 720 x 29310 720 x 29300 720 x 29290