I'm not exactly sure what the metal is, aluminum and something else as it has some weight to it. It is a very cool and unique piece both modern and rustic at the same time. It has no hallmarks and is strung on a rubber cord.
Measures: 3 1/4" height x 2 1/2" wide x 1/2" thick. The cord is about 17".
Have any questions?
Contact the shop owner.
