From Fender:
Fender 7250 nickel-plated steel strings combine the high output and dynamic sound of steel with the smooth feel of nickel. These roundwound strings are bright and punchy and are perfect for rock, blues and more. There’s no better way to let your bass personality shine through than with this highly articulate string set.
String Gauges: .045, .065, .085, .105, .125
String Ends: Ball End
Material: Nickel-Plated Steel