Durable string height gauge ruler with precision etched markings that resist wear during continuous use. Made of stainless steel for strength and longevity; antirust and wearresistant, not easy to damage. Accurate and convenient pocketsized measuring tool for easy portability and use anywhere. Suitable for measuring string height on instruments such as electric guitar, electric bass, acoustic guitar, and electric box guitar finger plate measurement. Use scenarios Instudio guitar setup: quickly verify string height before recording to ensure consistent feel across sessions. Live performance prep: check string height between sets to maintain playability and comfort. Workshop maintenance: use during setup or of electric guitars, basses, and acoustics to obtain precise measurements. Specifications at a glance Material: stainless steel Function: precise string height measurement Size: pocketsized for easy transport Compatibility: suitable for electric guitar, electric bass, acoustic guitar, and electric box guitar finger plate measurement