Trying to set up a behaviour for a select list where the option in the list is a number

[TS037651]

Trying to set up a behaviour for a select list where the option in the list is numeric, not working as expected, when the option is not numeric it's working. Would someone be able to tell me what I'm doing wrong?

def selectVal = dropDown.getValue()

if (selectVal.toString().contains("1")) {

This one is working as expected

if (selectVal.toString().contains("Not a Tool")) {