International Measurement Standard String Action Ruler Gauge Guitar Luthier Tool
Description:Fit for electric guitar, Bass and acoustic guitarModel: GC-01Material: Stainless SteelSize (Lx W x T): Approx. 3.5 x 2 x 0.24 inch / 89 x 51 x 0.6 mmPackage Includes:1 x String Action Ruler1 x Instruction Paper Card