The Grover Sta-Tite 97-18 series tuning machines feature a stylish die-cast plate and gold button, which provide smooth, precise tuning for your instrument. With an 18:1 gear ratio, these open gears offer quick string changes and tuning adjustments so you can dial in your perfect sound. The 97-18 series is a drop-in upgrade that installs easily on most guitars, basses and other fretted instruments. Whether you play rock, blues, jazz or metal, the Grover Sta-Tite machines keep your instrument in tune through the most demanding performances. Built to withstand years of regular use, these high-quality tuning machines provide durable, dependable performance for serious musicians. For tuning machines that won't let you down, choose the Grover Sta-Tite 97-18 series.