300 x 10000
300 x 10000 = 3000000
Example of 300 x 10000 pixels banner dimensions.
250 x 10050 260 x 10040 270 x 10030 280 x 10020 290 x 10010
300 x 9950 300 x 9960 300 x 9970 300 x 9980 300 x 9990
300 x 10050 300 x 10040 300 x 10030 300 x 10020 300 x 10010