The new Tone Ninja locking tuners were engineered to be good looking, reliable, and a great upgrade for almost any guitar. With a locking wheel and an all-new 20:1 gear ratio, you can be assured of tuning precision and stability. Also available in Chrome, Black, Gold, Nickel and Satin chrome and in most popular six string formats including left handed. Fits guitars with a 10 mm modern peghead hole size. Contents: 6 Tone Ninja Locking tuners 6 screws 6 bushings 6 washers