Check the listing for details. Martin Clapton's Choice Phos Bronze Strings Lite MEC12. Condition: New. Listed at 11.79 USD. Martin Clapton's Choice Phosphor Bronze Acoustic Guitar Strings, Light (12 - 54) MEC12 Clapton's Choice Phosphor Bronze guitar strings have a distinctively clear, warm tone with a hint of brightness that can highlight the subtleties of a player's style. Live or in the studio, they deliver the performance expected by Eric Clapton. These strings are ideally suited for auditorium, orchestra model, or other smaller body size guitarsand finger style playing. (.012, .016, .025, .032, .042, .054) Have a question about this item? Please send us an ebay message. . We work very hard to maintain our high positive feedback rating. If for any reason you are unhappy with your purchase, please contact us before leaving feedback so we can attempt to remedy the situation.