D'Addario XL Nickel Wound E-Bass strings are world-renowned and the preferred choice of many bassists across all genres. All XL strings are precision-wound to ensure excellent intonation and consistently high quality. Each string features a high-carbon steel core wrapped in nickel-plated steel, providing outstanding output and the best possible sound. They deliver a clear and brilliant tone, excellent intonation, and superb magnetic transfer. Scale: Long Scale. Quantity: 2 Sets. Gauge: .050, .070, .085, .105.