“Great replacement for standard the Grover 102 series that you find on all sorts of guitars like Gibsons and Maton. I changed out my Maton acoustic tuners with these 502's because I wanted chrome (I really don't like gold hardware) plus the convenience and stability of locking tuners. They do exactly what they should and they dropped straight into my guitar, all holes lined up perfectly. Solid, dependable quality tuners, will probably be around long after me.”