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 carbon steel core wrapped in nickel-plated steel, allowing for outstanding output and the best possible sound. Clear and brilliant tone, excellent intonation, and superb magnetic transfer. Gauge: .050 .070 .085 .105.