Martin Guitar Authentic Acoustic SP MA550 Guitar Strings Set, Acoustic Guitar Accessories, 25 Sets,

Silk-wrapped ends to protect the bridge Increased flex for huge bends and less finger fatigue Significantly extended life with uncompromised tone and feel Body, projection, and increased tuning stability Best for Fine or vintage instruments Beginners and finger-style playing Players who don’t change strings often Rigorous practice and performance Features Soft silk wrap to prevent wear and tear; added thickness to secure bridge pins Lighter version of our SP core wire with heavier wrap wire; full and balanced tone with increased playability Patented anticorrosion treatment; core and wrap wire protection Higher tensile strength and tin-plated core wire; balanced tone and quicker response String Materials Available 80/20 Bronze, 92/8 Phosphor Bronze, Silk & Steel 80/20 Bronze, 92/8 Phosphor Bronze, Silk & Steel 80/20 Bronze, 92/8 Phosphor Bronze 80/20 Bronze, 92/8 Phosphor Bronze, Silk & Steel Bass String Gauges Available Extra Light Custom Light, Light Medium Extra Light 12-String Custom Custom, Custom Light, Medium Extra Light 12-String Light, Tommy’s Choice Extra Light Custom Light, Light Medium Extra Light 12-String Extra Light Custom Light, Light Light/Medium Medium Extra Light 12-String Light 12-String Bluegrass Custom