The Grover Sta-Tite 97-18 series nickel button tuning machines provide precision tuning for your guitar. With an 18:1 gear ratio, you get ultrafine tunability for accurate intonation. The die-cast tuning machines are durable yet lightweight so they won't weigh down your headstock. The open-gear design gives you a classic look while the butterbean buttons are stylish and easy to grip. Keeping your guitar in tune is important for any musician, and the 97-18 series delivers rock-solid tuning stability gig after gig. For smooth, dependable tuning machines that will handle anything from light strings to heavier gauges, the 97-18 series is a reliable choice.