What kind of wire is used to connect the servo with the front wheel

What kind of wire is used to connect the servo with the front wheel assembly?

I used a 3D printed servo rod off Thingiverse.

I would imagine a heavy duty paper clip would even work.

With my old school R/C cars I just used steel wire/very thin rod from any hardware or hobby store.

Paperclip wire doesn’t work … still looking for options.

piano wire bent a z-bent for servo and steering rod. Thats how we do it with all rc planes and some heli’s

I used a heavy paperclip