Features: Premium metal bass string retainers for 2/3/4 string electric bass guitars ensure lightweight durability while preventing headstock scratches and string winding damage during installation. Top loading grooves design simplifies string threading, maintaining optimal tension for enhanced sustain, playability, and consistent tone claritys across all frets. Ideal for professional bassists, studio musicians, and hobbyists seeking reliable hardware to protect instruments and refine performances in high pressure playing environment. Perfect for live gigs, studio recordings, or home practice where quick string changes and sustained resonance are critical for dynamic basslines articulations. Engineered with precisions machined metal components to withstand rigorous playing styles while preserving string integrity and delivering studio grade acoustic projection. Specifications: Weight: About 10g Material: Metal 2 Size: Approx. 0.97x0.31inch(24.5x7.8mm) 3 Size: Approx. 1.73x0.3inch(44x7.6mm) 4 Size: Approx. 2.05x0.28inch(52x7mm) Package Includes: 1x Bass String Fixer note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.