These imported bass tuners fit peg holes of 11/16. Four bass side and one treble side as used on music man basses. These are from a new imported Sterling by Music Man bass, but are the same size vintage style tuners found on Fender, Music Man or G&L basses with 1/2 inch posts and 11/16 peg holes. The four bass side tuners will work fine on pbass, jbass and many four string basses using 1/2 inch posts. Includes bushings and screws. $35 obo including shipping lower 48 conus.