Item Type: Guitar Leveling RulerMaterial: Stainless SteelColor: Rose Gold 1FOR STRING INSTRUMENT: This leveling ruler is suitable for stringed instruments such as electric guitar, bass, mandolin, banjo, etc. 2STAINLESS STEEL: Made of excellent stainless steel material, with high hardness, wear resistance and long service life. 3MAIN PURPOSE: Easy access to pinpoint those pesky tweeters and check the final height after you have repaired or replaced them. 4GLOSSY SURFACE: The leveling ruler has glossy appearance and will not damage the surface of the stringed instrument. 5EASY OPERATION: The guitar string action gauge is lightweight and portable design, easy to operate, easy to control and use.