What to use for wire guide

[BMHouze]

Noticing .My AP is missing some of the wire stop/guide behind the flippers.
Any tios on what to use to replace it that's easy?

 

[ToMMy]

Noticing .My AP is missing some of the wire stop/guide behind the flippers.
Any tios on what to use to replace it that's easy?

Hobby Shop ... Piano wire.
Comes in 2 - 3 ft lengths, many different diameters. Bring a similar piece with you to gauge it up.

Measure, cut & bend it to shape. It's pretty stiff wire, so you might need to bend it in a vice.