Gold-filled technique consists of a base metal such as brass or copper, to which a sheet of gold is bonded by pressure or other means.
To qualify as gold filled, an article of jewelry must have a layer of gold at least 1/20th, or 5% of the weight of the entire article.

Diameter : 5mm
Thread diameter : 0.7mm
Unit weight : 0.15gr

Pkg of 10 pieces.