Slider with negative and positive values

I’d like to make a slider that can show negative and positive values, zero value must be the middle and default value. A kind of rudder…
I’ll attach a screenshot with the goal i want to achieve.

I tought about using a sliders for my purpouse but i’m unable to set it up. Neither i found some tutorials that can help me.

Which tool could I use to achieve my goal instead of the slider? Otherwise how could I set the slider to have the effect of the image? Thanks for your time

use 2 sliders, one rotated 180 degrees for simulating the negative part. here is a unity oficial tutorial

as @Defetysta pointed, there is no need to rotate the object just change the slider property Direction.