🎶 Elevate Your Sound with Precision Tools! Designed for a variety of string instruments including guitars, basses, and banjos. Fret wire sanding set delivers a silky-smooth feel for enhanced playability. A must-have toolkit for both amateur and professional luthiers alike. Accurately gauge string height, saddle depth, and more for optimal performance. Fretboard protector ensures your instrument stays pristine during maintenance. Versatile Compatibility Precision Measurement Complete Toolset The Mr.Power Guitar String Action Figure Ruler Kit is a comprehensive luthier toolset designed for precise measurements and maintenance of string instruments. It includes a string action ruler, fretboard protector, and fret wire sanding set, ensuring your guitar, bass, or mandolin remains in top condition while enhancing playability.