Sleek and compact, easily installed on the smallest of 4, 5, 6 & Extended Range Bass headstocks. Bass side = Left side of headstock on a right handed bass. Treble side = Right side of headstock on a right handed bass. All finish colors have Hipshot Logo (as seen on Chrome). Lighter yet possesses full size gears and string post. The 3/8 diameter version fits basses with a headstock hole size of 9/16 inch.