The Grover Guitar Rotomatic Mini 205C6?are professional in design and performance. Small and lightweight, this precision tuning?machine fits guitar headpieces that will not take full size machines. The mini buttons provide more space for player?s fingers (even larger fingers) to tune strings. The tuner features a gear ratio of 14:1, a 6-in-line configuration, and the sealed in lubrication keeps mini perfect for a lifetime! The tuner is chrome in color and includes 5/8? washers, bushings and wood screws.