The guitar neck notch ruler in this kit is essential for checking the straightness of your guitar neck. Made from steel materials, it provides stable measurements. This tool is ideal for both professional luthiers and DIY enthusiasts looking to maintain their guitars in top condition. Features -Color:Silver -Material:Steel -Size:8.60X5.80X0.50cm/3.38X2.28X0.20in -Accurate: this gauge kit ensures precise measurement of guitar string action, aiding in ideal tuning adjustments -Compatibility: ideal for use with bass guitars, classical guitars, and more, providing versatility for various instruments -Convenient: designed to be lightweight and portable, making it easy to transport and use anywhere -Precision: the highprecision assists in adjusting the neck string height for improved sound -Sturdy construction: crafted from steel, this tool is withstanding frequent use Package list: 1 x guitar string gauge