Fret wire

[nash]

What is your preferred;
Brand
Material
Size

[Manton Customs]

Jescar wire is the best around in my opinion.

[MoonBassAlpha]

I've often casually wondered what the fret wire Eggle used on their Berlin guitars as the shape feels so nice under the fingers. It's quite wide and not super high, so it feels great sliding up and down the neck.