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 comprehensive set includes precision tools for guitar and bass maintenance, suitable 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 tool kit ideal 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 setup and optimal sound quality for electric guitars, electric basses, and acoustic guitars - Constructed from durable metal with smooth, rounded edges to prevent scratches and ensure safe handling - Compact and portable design allows 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