Fritz Ruler Guitar String Action Gauge Ruler String Pitch Ruler Card 
Feature:

Specification:
Material: synthetic plastics
Weight: 5g
Size: 8.5*5.4cm/3.34*2.12''
Applicability: Measurement of guitar, bass and other instruments

Front Function:
1. 80mm scale.
2. Classical Guitar 12/14 product chord from the default value (Classic Guitar).
3. 4/5/6 string bass 12/14 product chord from the default value (Bass Guitar).
4. Electric guitar 12/14 product chord from the default value * lower limit (Electric Guitar Low).
5. Electric guitar 12/14 product from defaults string * upper limit (Electric Guitar High).
6. Acoustic Guitar 12/14 product chord from the default value (Acoustic Guitar) .

Back Function:
1. The first product fingerboard width 40mm, 42mm, 45mm measured value and the pitch of the strings.
2. The first product fingerboard width 38mm, 41.5mm, 43mm measured value and the pitch of the strings.
3. The first product fingerboard width of 50mm (Classic, Classic), 45mm (5 string bass), 38mm (4-string bass) and string spacing measurements.
4. The first product fingerboard width of 52mm (Classic, Classic), 42mm (4 string bass), 40mm (4-string bass) and string spacing measurements.