Grover chrome 5x5 mini sealed tuner set for 10-string pedal steel guitar. Shortened string posts and bushings are specially designed for the slotted head of a pedal steel. Fits headstock thickness from .235” (6mm) to .400” (10mm). String post length is .900” (23mm) from the back side of the tuner housing. Each tuner has a mounting pin at the back, for installing on cast aluminum headstocks without using a screw. Incudes screw-in bushings and face washers. Features Grover's lifetime guarantee.