They feature:

• Grip-Lock pin and thumb wheel system clamps onto your string for extra security.
• 16:1 gear ratio for finer tuning
• Schaller M6L Mini footprint
• wide variety of button designs (click here for more)
• Chrome, Black or Gold finishes
• Bass side and treble side options
• Optional staggered post configuration means you can increase your break angle, reduce buzz at the nut and free your guitar from string trees forever!