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. Clear and brilliant tone, excellent intonation, and superb magnetic transfer. Scale: Long Scale. Gauges: .032, .045, .065, .085, .105, .135.