Guitar String Action Gauge Ruler, 2Pcs Double Sided Fingerboard Fretboard Measuring Tool with Clean Print for Bass

MULTI FUNCTION: This guitar string action gauge ruler can measure string height, bridge saddle height, saddle slot depth, fret slot depth and nut height and accurately measure other setup adjustments. DOUBLE-SIDED: The ruler is double-sided, there is fraction, decimal, metric conversion chart on back. MATERIAL: Made of high quality plastic, the ruler is durable to use, and the measurement print on the ruler is clear to see. MINI SIZE: The string ruler is as bigger as a credit card size, small and convenient to storage and transport. GUARANTEE: Our product have 180 days warranty, if you have any question about this product, please feel free to contact us, we will try our best to help you solve your problem.