The Grover Sta-Tite U99-18 series tuning machines provide precision tuning for your ukulele. With an 18:1 gear ratio, you get smooth, accurate tuning that holds pitch. The open gears and classic styling give your ukulele a traditional look, while the die-cast plate provides a stable mounting platform. The 22/64" post hole and included hardware make installation straightforward. Once in place, you'll appreciate how the butterbean buttons feel under your fingers as you dial in the perfect pitch. For ukulele players seeking vintage-inspired tuning machines that provide modern performance, the Grover Sta-Tite U99-18 series delivers.