Sirxlevcy New String Action Gauge Ruler Guitar Setup Gauge String Fret Luthier Measuring Tool for Electric Acoustic Guitars

4. EASY TO USE: Simply place this guitar ruler on the head and it automatically fall into the strings, easily and conveniently measure the size of the guitar. 3. VERSATILE USE: This guitar set up gauge is suitable for all types of guitars, including electric guitar, acoustic guitar and guitar. 2. STAINLESS STEEL MADE: This guitar fret ruler is made of stainless steel, which is sturdy and can be used for a long time without rusting. 1. ACCURATE SCALE: This guitar ruler adopts high precise digital scale, which can easily measure guitar sizes such as pitch, key spacing, string spacing. 5. PORTABLE SIZE: This guitar string height gauge is compact is size, easy to carry, and very practical, is a necessary tool for luthier.