This Optima GOLDBROKAT Premium E string is a steel string and available with loop and ball end.
The GOLDBROKAT Premium brassed is a brass-plated steel string that has improved tarnish protection due to the brass surface.
In March 2015 OPTIMA Musiksaiten GmbH in Geretsried took over the production of Lenzner Musiksaiten Leonhardt GmbH in Markneukirchen but still offer the popular Lenzner GOLDBROKAT strings.