Features: Achieve precise string height adjustments with our guitar string action gauge, designed to enhances your guitar's performances and playability. Crafted from metal, this measuring tool features a clear conversion chart for easy visual identification of string height, ensuring accurate tuning every time. Ideal for guitar enthusiasts, professional musicians, and instrument technicians who seek optimal sound quality through fine tuning. Perfect for daily guitar maintenance, performances adjustments, or professional repairs in music shops, keeping your guitar in top condition. This ruler is suitable for electric guitars, acoustic guitars, bass guitars, and even 6 string basses, offering comprehensive string spacing solution. Specifications: Material: Metal Size: Approx. 16.54x1.46inch(420x37mm) Package Includes: 1 Set Guitar String Action Ruler note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.