How do I make a public input selection out of 3 integers?

So I need my user input value to only have options such as {10, 100, 1000}. As far as I researched, I am unable to do this using the default inspector since it only allows named enums for such task. How do I achieve this goal otherwise?

With a bit of creativity ;3

public enum ValidValue
	i10 = 10,
	i100 = 100,
	i1000 = 1000

public ValidValue select;

then, you can cast the enum value to an int.

int value = (int) select;