The GHS Boomers Guitar Strings Light are a set of high performance Nickel plated Steel electric guitar strings with a round wound construction to deliver a bright and lively tone. With a long lasting lifespan and gauges of 11 to 50 are perfect for any electric guitar. Specifications String Type: Electric Core Material: Steel Winding Material: Nickel Plated Steel Winding Type: Round Wound Coated: No Gauge Range: 11 – 50 Gauges: 1E: .011 2B: .015 3G: .018 4D: DY26 5A: DY36 6E: DY50