Slicer Filter "Between" Option Problem

Hi everyone!

So I have this problem when I use the Slicer Filter to select data. When I use it with Dates it have this "Between" option to select a range of dates but when I use numeric values that option disappears.

How can I use the Between option from the slicer filter with numeric values? Does my values need to be in a special format for the slicer to work?

Help please!

Regards.