Designed for precision, this guitar setup ruler is an essential tool for adjusting string height and neck alignment. Its sleek and sturdy construction makes it suitable for various stringed instruments. Whether you're fine-tuning your electric guitar or performing routine maintenance, this tool ensures consistent and reliable measurements. Features -Color:Silver -Material:Metal, Plastic -Size:42.00X3.70X0.20cm/16.51X1.45X0.08in -Size:7.00X6.30X0.10cm/2.75X2.48X0.04in -Size:8.50X5.40X0.10cm/3.34X2.12X0.04in -Size:10.00X5.00X0.15cm/3.93X1.97X0.06in -Enhanced playability: finetune your guitar for better playability and sturdy sound with accurate string height adjustments -Universal application: perfect for use with both electric and acoustic guitars, addressing a wide range of needs -Swift string height adjustment: easily measure and adjust string height for a seamless playing experience -Critical maintenance tool: indispensable for guitar lovers and professional technicians to ensure precise instrument calibration -Compact and portable: small and easy to transport, suitable for use at home, in the studio, or during gigs Package list: 9 x Understring radius gauges 1 x Guitar luthiers tool 1 x Fret rocker 1 x String action ruler