Home  > Guitar Strings By Brand > Martin & Co Strings > Martin & Co Extended Life SP+ Guitar Strings Martin & Co Extended Life SP+ Guitar Strings SKU: MSPLUS3100 Price: $ 11.99 Availability: IN STOCK - Ships in 1-2 Business Days  Add to Cart  Shop With Confidence  All personal information you submit is encrypted and secure. Your information is not shared or given to outside parties with the exception of the necessary components in completing your order.   Product Description   Martin SP strings are gauged for flat or finger picking styles and offer dynamic response and brilliance. Product Options Specify type:  MSPLUS3100 Bronze Light .012 - .054 (+ $0.00) MSPLUS3200 Bronze Medium .013 - .056 (+ $0.00) MSPLUS4100 Phos/Bronze Light .012 - .54 (+ $0.00) MSPLUS4200 Phos/Bronze Medium .013 - .056 (+ $0.00) Other Product Details   Brand Martin & Co Information Martin SP strings are specifically designed with greater flexibility for the fingerstyle player and provide warmth and sweetness while accentuating brilliance! Product Type Guitar String