Are you a guitar lover or does your friend enjoy playing guitar? This professional luthier tool kit is designed for guitar repair and setup. Ideal for measuring string action and radius, this kit includes precision tools for both professional and personal use. Features - Color: Silver - Material: Metal - Dimensions: 42.00 x 3.70 x 0.20 cm / 16.51 x 1.45 x 0.08 in - Dimensions: 10.20 x 5.00 x 0.20 cm / 4.01 x 1.97 x 0.08 in - Dimensions: 8.50 x 5.40 x 0.10 cm / 3.34 x 2.12 x 0.04 in - Dimensions: 7.00 x 6.50 x 0.10 cm / 2.75 x 2.55 x 0.04 in - Complete guitar tool kit suitable for guitar maintenance, adjustment, and string action measurement - Includes understring radius gauge, string action gauge ruler, straight edge ruler, and fret rocker - High-precision tools ensure accurate measurements for optimal guitar performance - Compatible with electric guitars, electric basses, and acoustic guitars - Constructed from durable metal with smooth, rounded edges to prevent scratching or hand injury - Compact and portable design for easy transport and storage Package List 9 x Understring Radius Gauge 1 x String Action Gauge Ruler 1 x Guitar Neck Straight Edge Ruler 1 x Fret Rocker