Note: Block is actually referred to as "Varsity" in the pick list to prevent confusion with a true solid block font.
A few things you should know when selecting a font:
1) letters will be enlarged or reduced to fit the plate selected.
2) font may look slightly different than shown depending on the resulting size
3) Script will always be printed in Upper and Lower case, all upper case creates an unreadable plate.
4) Most recommended font Roman