ACCURATE SCALE: This guitar ruler adopts high precise digital scale, which can easily measure guitar sizes such as pitch, key spacing, string spacing.
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.
VERSATILE USE: This guitar set up gauge is suitable for all types of guitars, including electric guitar, acoustic guitar and bass guitar.
EASY TO USE: Simply place this guitar ruler on the head and it will automatically fall into the strings, easily and conveniently measure the size of the guitar.
PORTABLE SIZE: This guitar string height gauge is compact is size, easy to carry, and very practical, is a necessary tool for luthier.