Martin SP 80/20 Bronze Extra Light 10-47 Acoustic Guitar Strings are named “Superior Performance” for a very good reason. They are exceptionally well engineered and can withstand hours of rigorous performance. Thanks to the high tensile-strength core wire and tin-plate for improved corrosion resistance, each string boasts fantastic resilience no matter how enthusiastically you rock out. Completing the package is high quality wrap wire that ensures your tone remains consistent and rings out truly each and every time. The Extra Light gauge of the 10-47s means that you don’t have to battle against the string when you play. For beginners or those who simply prefer a lighter gauge, then these are the ones for you. Don’t be fooled by the lightness of the gauge though, they can hold their own with the best of them and can take any punishment thrown their way. Established way back in 1833, Martin have a wealth of experience when it comes to their craft. They are continually evolving to ensure that they are at the top of their game, and the SP 80/20 Bronze Extra Light 10-47 acoustic guitar strings set a fine example for others to follow.