Red Coated Bass Strings on Round Core.
Gauge:
RDB-40 Lite 40, 60, 80, 100
RDB-45 Medium 45, 65, 85, 105
RDB-50 Medium 50, 70, 90, 110
RDB5-40 Medium 5's 40, 60, 80, 100, 120
RDB5-45 Medium 5's 45, 65, 85, 105, 125
RDB6-30 Medium 6's 30, 45, 65, 85, 105, 125