The Universal ruler tools, Fits in any wallet. With the Kirstein ruler tool guitar/bass/violin/ukulele, you have full control of the action of your instrument at all times. Whether you're guitar,, bass, ukulele Banjo... The practical card is suitable for any guitar, bass, violin and because it's credit card format in each bagCarry, Even When You Are Travelling. All scales and markings are for both millimetres and in inches. With the verticalScale makes it easy to measure the depth of seat grooves and hem slits and the height of pickups. - You can easily adjust the height of the stringsTo adjust the string height, legst you're experiencing all cards simply at the 12th fret of your guitar, can see markings at a glance whether to insert theSetting up or down to adjust. Recommendations for tune Chromatic Bass Violin Ukulele are on the back of the card. Recommendations for various stringed instruments - String Action At 12th
