Features: 1. You Can Use The Knob To Fine Tune The Bass. 2. The Gear Is A Bronze Material Plated With Chrome/, To Use. 3. This Is Absolutely The Best Choice For Your Bass 4.&Nbsp;High Quality Steel Material Ensure The Durability Of The Product. 5.&Nbsp;Great Workmanship, Replacement For The Old One. &Nbsp; Specification: Condition: Brand New Material: Steel Color: Silver Optional : For Left Row, For Right Row &Nbsp; Package List: 1 X Bass Tuner 1 X Installing Round Cover 4 X Small Screws