Brushed Raw Genuine Copper Metal 1/18" (3mm) thick pickguard with Round Over bevel. It's 2ply with Brown Bakelite backing. Its great because the 2ply material Copper/Brown Bakelite cuts the weight down a lot. Nobody wants a solid 1/8" copper. That would be way too heavy obviously. The top laminate of copper is about 1/32" perfect!
