D'Addario ECB80, XL Chromes, 40-95, Bass Strings, 4 String Set, Long Scale, Super Light Gauge

D'Addario ECB84, XL Chromes 40-100, Bass Strings, 4 String Set, Long Scale, Custom Light Gauge

D'Addario ECB81, XL Chromes 45-100, Bass Strings, Long Scale, 4 String Set, Regular Light Gauge

D'Addario ECB82, XL Chromes 50-105 Bass Strings, 4 String Set, Long Scale, Medium Gauge