The forever beaded bracelet stack is very popular and desired by customers. However not all are created equally. Ours are what we consider the best after pure gold. Not gold filled. Which is a mixed metal base and a light gold heat applied layer that is based on the weight of the piece and for hollow beads that is not much. Ours are steel PV plated ( technology that bonds) genuine gold. Resisting Tarnish for years. Waterproof, scratch resistant and hypoallergenic