Front : Titanium
Body : StainlessSteel
Rear : Copper(Hanmon Kujyaku Coler) Copper Red
This is an all-metal type of LOAK.
Back plate is copper.
Copper coloring using traditional Japanese techniques by Momentum Factory Orii.
The antique finish copper is very cool.
The sound is milder than the same model in brass or stainless steel.