Hipshot HB2 American Classic tuners for Bass guitar. 27:1 ratio with adjustable tension. Includes bushings and mounting hardware. Mounting hole spacing is 1-5/16" across the top, 1" across the bottom, and 1-7/16 top to bottom(on center).The item "20210N Set of 4 Hipshot Nickel Tuners for Bass Guitar HB2" is in sale since Monday, February 19, 2018. This item is in the category "Musical Instruments & Gear\Guitars & Basses\Parts & Accessories\Tuners". The seller is "guitarpartsfactoryus" and is located in Millersport, Ohio. This item can be shipped worldwide.