This is the Hipshot BT8 Bass Xtender: a replacement D-tuner machine head for the E-string of F-style American Standard basses built in 2008 or later.
Gold Hipshot KickAss bass bridge for 4-string basses with a 5-hole mounting, interchangeable inserts and adjustable string spacing from 17.5 to 20 mm.
Nickel-plated Hipshot Bass Extender D-tuner (left-handed) with a double-stop lever fitted and reverse winding, for pre-CBS F-style basses.
