Versatile: Designed for both acoustic and electric guitars, this adaptive fret press caul is for installing frets on fingerboards with varying , accommodating 6-24 inch or even flat fingerboardsMaterial:The Fretboard Press is crafted from copper material, ensuring longevity and reliable performance during guitar maintenance and repair tasksDesign:This Guitar Fractal Fret Press offers handling and ease of use for professional luthiers and DIY enthusiasts alikeAdaptive Compatibility: The Fingerboard Fret Inserts design allows it to conform to the shape of different fingerboard , making it an essential tool for working with mixed fingerboardsConvenient Packaging: Comes neatly packaged in a sturdy paper box, providing protection during shipping and easy storage when not in use Size Chart: 6.2cmx5.4cmx0.7cm/2.44inchx2.13inchx0.28inch Package Includes: 1Fretboard Press Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.