D’Addario’s premium uncoated acoustic string set that provides a crisp and clear sound to accentuate the unique tone of your guitar. NB13556BT delivers a balanced medium tension string set resulting in a bolder, more resonant acoustic tone with ideal resistance for powerful strumming and flat-picking.

• String gauges optimized for an even feel across all six strings, allowing for easier chord transitions, smoother scales, and reduced fatigue.
• Delivers a full tonal spectrum, revealing the unique tonal qualities of your acoustic guitar.
• Increased corrosion resistance for a longer lasting uncoated string
• Feature D’Addario’s exclusive high-carbon NY steel for unprecedented strength and tuning stability
• Made in the U.S.A. for the highest quality and performance
• String Gauges: Plain Steel .0135, .018, Nickel Bronze Wound .024, .032, .042, .056