Medium Light strings for 12 string guitar. VintageBronze gives you clarity, tone, and response like no other string. Add a great feel and long life, and there's not much more you could ask for. Made of 85% Copper and 15% Zinc, this true bronze string has been delivering satisfaction to the most demanding acoustic players since its very beginning in 1972. Features set of twelve strings. String size: .011 - .011 / .014 - .014 / .024 - .010 / .030 - .014 / .040 - .022p / .050 - .030.