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: 009, .011, .016, .024, .032, .042. Super Slinky. Core material: Steel. Winding material: Nickel plated steel. Coated: Nanotreated. 3 pack.