Product details:
's Grip-Lock Guitar Tuning Machines grip your strings for positive, accurate tuning. The new sleek design and ultra smooth 18:1 gear ratio give you a great combination of tuning stability, accuracy and good looks. The locking feature eliminates the need for multiple string wraps, and trem users no longer need a locking nut that deadens string sustain and all those annoying Allen screws and wrenches (added weight). Tired of winding strings? This is the answer. The Grip-Lock is proven to hold strings tightly, allowing the guitar to stay in tune to improve playing enjoyment. The Grip-Lock is a mechanical type locking system that can be used on any guitar, including non-trem or acoustic. 7 String sets have posts all the same length, i.e. non-staggered. This set is 3x4, i.e. 3 bass side tuners and 4 treble side tuners. The 7th tuner has a wider string hole to accommodate strings up to 0.080diameter.