(Set of 4) Hipshot HB2 American Classic tuners for bass guitar. Nickel finish. Right handed with late 60s Fender® style round "lollipop" key. The finest quality materials and precision engineering have been combined to make American Classics the best bass tuning machines you can buy. 27:1 ratio with adjustable tension. The HB2 fits most Fender® Basses from 1966-1982, and other applications with 11/16"(18mm) peghead holes. Mounting hole spacing is 1-5/16" across the top, 1" across the bottom, and 1-7/16" top to bottom(on center). Includes bushings and mounting hardware. Made in the USA.