Features: High Precisions Bright Sliver Etched Markings: Matte black coating on the stainless steel base to avoid mirror reflections, which make it more clearly and easy for your guitar setting up. Professional Guitar Set Up Tool: Fit for fret crowns height, string height, for ridge saddle slot depth. Measure the distance between the pickup rod pieces and the strings. Measure the nut height. Smooth Polished Edges: Combined with numbers and lines that engane years of use. Measurements in inches, metric and 64ths were included to customize to your preference. Hand Luthier Tools: Pocket-sized guitar ruler with gorgeous leathers case to protect your gauges scale value to be damaged and make it as an indispensable tool gift for guitarists. Guitar Gauge: Fit for electric guitar, Bass, acoustic guitar, mandolin, and also banjos, etc. Specifications: Material: Stainless Steel Color: As The Picture Shows Package Weight: approx.40g Size: approx.9.1x5.1cm/3.58x2.00in Package Includes: 1Pc Guitar Ruler String Action Ruler note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!