Grover lightweight 2+2 clover leaf bass tuners in chrome finish. With a plastic housing and aluminum string post, this lightweight bass key is perfect for the player who is concerned about the overall weight of the instrument. Each tuner weighs only 2oz(58g). The 20:1 gear ratio provides the finest tuning available. Requires 11/16"(18mm) peghead holes. Includes screw-in bushings and face washers. Each tuner uses two mounting pins in the back of the housing. Features Grover's lifetime guarantee.