Features: Elevates your guitar playing precisions with our guitar string action ruler, a must have tool designed for wonderful string height adjustment and enhances playability. Crafted from quality aluminum, this portable string action gauge features accurate marking, ensuring measurements for all types of guitars are quick and without effort. Streamlines your guitars setups process and achieve the great string balances with ease, making this string action ruler an indispensables accessory in every guitarists toolkit. Great for use in various settings such as home maintenance, studio tunings, and music school educational programs, this ruler is versatile for any guitar related activity. Whether you're a guitarists, a music enthusiast, or a guitar instructor, this measuring card is the great partner for anyone needing to fine tunes their instrument action. Specifications: Materials: Aluminum Color: Blue/Black Package Weight: approx.65g Size: approx.10.1x4.0x1.7cm/3.97x1.57x0.67in Package Includes: 1Pc Guitar String Action Ruler note: Please allow 1-3mm error due to manual measurement. Please make sure you not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!