It has a name

This thing:

It's a "string tree" yeah I would not of thought of calling it that. It helps with tone apparently. I tried figuring out what it was before but google metal on headstock and all you'll get is tuners. Count on TB.com to set me straight.

Picture of Intonation

As I've said before [I think, I can't find the post] I tune by tension, and I noticed without the string tree the A string [The Bloody A string!] doesn't have the right tension. Once it was on properly it all works out.

Okay it is abit of an eye sore, and googling pictures for this post I found alot of cute/demure ones, so yea! Something else I can upgrade.... [My poor wallet.]