Feature: 1. Used to directly measure the straightness of the neck with frets and accurately judge the local deformation of the fingerboard or neck. 2. The two sets of notches on both sides are suitable for most common specifications of fret positioning. 3. Made of stainless steel, rust‑proof and strong. The best hardness and thickness, specially designed for stringed instrument users. 4. Suitable for most guitars, especially for electric guitars, has wide applicability, can bring you more convenience. 5. Strict manufacturing, accurate scale. Dual scales in millimeters and inches are more convenient to use. Specification: Condition: 100% Brand NewItem Type: Notched Straight Edge .Material: Stainless Steel + PlasticColor: As the Picture ShownApplication: GuitarNotched Straight Edge Size: Approx. 42 x 3.7 x 0.35cm/16.5 x 0.1inGuitar Chord Ruler Size: Approx. 8.5 x 5.4cm/3.3 x 2.1in Package List: 1 x Notched Straight Edge 1 x Guitar Chord Ruler