[ 1 Set ] Mandolin Tuning Pegs, Tuning Keys Machine Head with Nickel Color, Mandolin Replacements ( 4L + 4R ) Durable internal gear Absolute high quality guaranteed Guitar Tuning Keys 4-left 4-right Mandolin tuning pegs on two base plates. 8 screws and press-fit bushings included. Four on a plank, he mandolin Tuning Pegs is great for Mandolin instrument.