Electric guitar strings feature the world's most advanced string technology. Paradigm strings demonstrate superior break-resistance and unparalleled durability, while delivering the iconic Slinky tone Ernie Ball is known for. Gauges: 010, .013, .017, .026, .036, .046. Regular Slinky. Core material: Steel. Winding material: Nickel plated steel. Coated: Nanotreated. 3 pack.