Are you a guitar lover Or does your friend like to play guitar Our luthier tools guitar kit is professional for guitar repair. Designed for measuring guitar, so this string action ruler gauge and guitar notched radius gauges kit for guitar bass setup can meet the needs of professional and personal use. Features Color Silver Material Metal Size 42.00X3.70X0.20cm 16.51X1.45X0.08in Size 10.20X5.00X0.20cm 4.01X1.97X0.08in Size 8.50X5.40X0.10cm 3.34X2.12X0.04in Size 7.00X6.50X0.10cm 2.75X2.55X0.04in Complete guitar tool kit is very suitable for guitar maintenance and adjustment, string action measuring. Includes multiple tools to meet various needs, contain understring radius gauge, string action gauge ruler, straight edges ruler and fret rocker. High precision measurement ensures guitar sound quality, fit all kinds of electric guitar, electric bass, acoustic guitar, etc. Made of durable metal material for lasting use, guitar tool kit with rounded off edge, not easy to scratch or hurt your hands when using. Compact design for easy carrying, guitar tool kit is portable for you to take anywhere you need. Package List9 x Understring Radius Gauge 1 x String Action Gauge Ruler 1 x Guitar neck straight edges ruler 1 x Fret rocker