Fender 9250 UltraCore nickel-plated steel bass strings are designed for players who demand powerful tone, dependable stability and a fast, refined feel. At the core of each string is Fender’s reinforced UltraCore high-carbon steel core wire, engineered for exceptional strength and precise pitch control under aggressive playing conditions. Wrapped in premium roundwound nickel-plated steel, these strings deliver enhanced articulation, focused low-end response and clear note definition while maintaining long-lasting durability and consistent performance.