Description:

【Material】:  T shped radius ruler and  string action gauge ruler set, made of stainless steel and abs. providing you with a reliable tool that stands up to frequent use.
【Clear Scale】: The ruler with clear and complete scale for accurate measurement. It's sturdy enough to withstand frequent use.
【Measurement】: Guitar luthier tools can be used to measure string height, string distance, bridge height, etc.
【Wide Application】:Guitar measuring tool is suitable for measuring stringed instruments such as electric guitars, acoustic guitars, electric basses, ukuleles etc., 
【Package Includes】: 9 piece radius ruler and 1 pieces string action gauge, ideal gift for friends. 

Size Chart:

String Action Gauge Ruler:8.9cmx5.1cm/3.50inchx2.01inch
Understring Radius Gauge :7cmx6.5cm/2.76inchx2.56inch

Package Includes:

9 Understring Radius Gauge 
1 String Action Gauge Ruler

Note:

Please allow slightly errors due to manual measurement and different monitors.