Why choose Grover Mini Rotomatic tuning machines for your guitar? Well, the small size is perfect for smaller headstocks in three-on-a-side configurations. Built-in lubrication ensures you'll get smooth performance for a lifetime. And the precise 14:1 gear ratio makes it easy to zero-in on your target tuning easily. So choose the tuners that pro guitarists worldwide rely on - Grover Mini Rotomatic tuning machines!