GIBSON DELUXE GREEN KEY TUNER SET (VINTAGE NICKEL) Gibsons vintage machine heads with pearloid buttons feature solid nickel, closed housing construction, period-correct vintage styling, and traditional pearloid buttons that deliver precise tuning, while adding a luxurious, classic feel to your guitars headstock. This OEM part comes in either Nickel or Gold finish. Special note: These tuners feature screw in bushings, which require a larger diameter mounting hole than traditional push in bushing tuners. If you are needing this style of tuner with push-in bushings, check out our Les Paul Pearloid Machine Heads