Features: Accurately measure guitar string action height with the metal ruler, featuring precise calibration for electric, acoustic, and bass guitars to ensure optimal playability. Crafted from corrosion resistant metal and paired with a leather pouch, this string height gauge delivers long lasting performances with clear etched measurement markers. Ideal for guitar technicians, luthiers, and musicians seeking professional grade setup tools for precise fretboard adjustments across multiple instruments. Streamlining guitar maintenance in studios, live performances, or home practice by instantly verifying 6th 1st string clearance using this pocket sized action ruler. The included leather sheath protects measurement surfaces from scratches while enabling organized storage in gig bags or toolkits for on the go accessibility. Specifications: Material: Metal/Leather Leather Case Size: Approx. 3.74x2.55inch(95x65mm) Ruler Size: Approx. 3.5x2inch(89x51mm) Package Includes: 1x Guitar String Height Ruler 1x Leather Case 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.