Kluson replacement for Gibson Melodymaker, Les Paul, Junior, SG, Junior. Nickel finish, metal buttons. Push-fit ferrules and mounting screws included. Please note: If you are retro-fitting a vintage instrument that has been modified or putting this vintage style tuning machine on a modern instrument you may also need to purchase the part  MB65LUS "adapter bushings" to convert a larger size peghole to vintage size to allow for proper fit and function. Important Specs and Dimensions: total center to center distance of all 3 posts = 2 3/4 in. center to center distance between posts - 1 3/8 in. length of baseplate- 4 1/4 in., post height = 1 in. drilled post, single hole, post dia. 1/4 in. (.25 in.) This is a complete set and comes with both left and ride side tuners. Also comes complete with bushings and mounting screws.