The Ibanez Edge III is a double locking tremolo system developed and produced by Ibanez, introduced in 2005. Like the Edge Pro II and Lo TRS tremolos before it, the Edge III is made for mid-level priced Ibanez guitars usually made outside Japan. The Edge III is named after the original Edge and Edge II. Unfortunately many people complain that these trems do not function as they should. Arguably the worst, most cheaply made Ibanez Tremolo System to date.