The D'Addario NSFW616 E-Contemporary Low B Single String is a single low B electric bass string for electric instruments, featuring a medium tension, a 0.75" gauge, steel flatwound construction. Designed in partnership with Ned Steinberger and NS Design, the D'Addario NS Electric Strings can be used on electric instruments to bring out the best in them. Each string is designed to enhance the expressive range of tone sought after by the most discerning players. The stranded steel core provides optimum playability and produces a clear, warm tone, and provides a brighter sound and lower tension than traditional Double Bass sets. All D'Addario strings are designed, engineered and manufactured in the USA to the most stringent quality controls in the industry.