1. Simple Action Adjustment: This tool simplifies the process of adjusting string height while maintaining comfort and accuracy, designed by guitarists to enhance playability and effortlessly produce outstanding sound quality. 2. BeginnerFriendly Tool: Achieve quick problemsolving with this guitar maintenance solution, developed for FRET standardization assistance. It is ideal for beginners while also meeting professional maintenance needs without complexity. 3. MultiInstrument Precision Set: Equipped with a height gauge combination and a quality kit, this string action ruler supports versatile adjustments for guitar and bass configurations, making it an essential multiinstrument tool for precise measurements and repairs. 4. Durable and Reliable Tool: With compact storage and a portable design, this string action ruler provides consistent stability and longlasting precision, crafted from sturdy materials to effectively support repeated use.