I'm selling these because I switched to strings from another manufacturer. No individual sales. Features: Slightly thicker 50-105 gauge than standard. For those who want a thicker sound. XL Nickel Round Wound, a world-renowned, classic electric bass string series known as "The Player's Choice" by bass players of all genres and styles. Precisely manufactured with D'Addario's unique digital control equipment, each string produces excellent intonation and clear sound. Recommended for all bassists.