For best results you will normally create the EZSingle image to be the exact size of the FORM, DIV or TABLE where you want it displayed. This means that the image will fill the FORM, DIV or TABLE and not be repeated.
Note: The smallest recommended size that EZRound suggests you to export a EZSingle design in is calculated this way:
Minimum size = ( Round Corner Size + Shadow Width + Background Padding ) x 2
This is because a smaller value would produce unusable results in the creation process.
You can create smaller images (and they work fine in some circumstances such as for small buttons), but be aware that if you have rounded corners and select a size that is too small - you may get undesirable results and need to increase the height or width of your EZSingle export.