Roller string tree bass retainer for electric guitar — a straightforward replacement part that stabilizes tuning, preserves string tension, and improves overall playability. Key benefits Stabilizes tuning: Roller design reduces friction at the headstock, helping strings smoothly and stay in tune longer. Maintains proper string tension: Keeps consistent break angle and tension for improved intonation and more accurate tone. Smooth string action: Rollers guide strings with minimal binding, reducing wear and tuning drift during bends and tremolo use. Simple replacement: Use to a broken or worn string tree to restore proper string alignment and performance. Features and attributes Function: Roller string trees act as a bass retainer to control string angle and tension across the nut and tuners, improving stability and tone consistency. Compatibility: Designed for electric guitars with standard headstock string tree locations; suitable for players seeking a direct replacement or upgrade. Size and profile: Compact, lowprofile design sits close to the headstock for a clean fit without altering playing feel. Material and durability: Built to withstand routine playing conditions and maintain consistent performance over time. Performance: Reduces nut and tuner friction, supports accurate tuning during bends, vibrato, and tremolo use. Practical applications a broken or worn string tree to restore correct string angle and tuning stability on an electric guitar. Install on guitars used with tremolo systems to reduce tuning shifts caused by string binding at the headstock. Upgrade a beginner or practice instrument to improve tuning consistency and maintain better tone during lessons or rehearsals. Installation and use notes Intended as a direct replacement or upgrade for existing string trees or retainers on electric guitars. Fit and installation are straightforward; typically mounts at the same screw locations as the original string tree. Recommended for players, learners, and technicians who need a reliable part to maintain string alignment, tension, and tuning stability. This roller string tree bass retainer is a practical, functional replacement part that helps preserve your guitar tone and tuning accuracy without altering the instrument s playability.