Nickel Bronze Acoustic Custom Light 11-52 NB1152D'Addario's premium uncoated acoustic string set that provides a crisp and clear sound to accentuate the unique tone of your guitar. NB1152 is a comfortable compromise for players who want the depth and projection of light gauge bottom strings, but slightly less tension on the high strings for easy bending. Nickel Bronze strings are the premium uncoated acoustic strings by DAddario. Featuring an innovative combination of nickel plated phosphor bronze