Multi-functional fingerboard scraper for multiple uses, accurate measurement, simple operation, help your repair and improvement.Can help you intuitive understanding of the Beth code and chord distance measurement.Beth bridge to measure the height of the strings and the width of the piano pillow.The operation of the Beth fingerboard template is simple and easy to use.Beth bridge is made of plastic material which is durable.Colour:BlackMaterial:AcrylicPackage Contents:2 * Code cutting template for bass instrumentsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.