Light top/extra heavy bottom 6 string set for electric guitar from Boomers series that features revolutionary Nitro-Pack packaging method to ensure each one string is corrosion-free and brand-new till opening the pack. Each string is individually housed in a nitrogen-sealed packet that eliminates any oxygen from around it. Strings are made with steel core and round nickel-plated steel (NPS) winding, and deliver bright, long-lasting tone and long lifespan. Gauges: .010, .013, .017, .036, .052, .060.