Argus Tremolo Set "Answer SHIFT-2001" A revolutionary tremolo unit that hit the market with the claim of never going out of tune, produced by a company named after the hit album of a hugely popular Japanese band in the early 1970s, featuring twin lead guitars from the UK. The original thick arm is missing, so two Strat-style arms that fit the hole size will be included instead. Please note that the original box and instruction manual are not included.