Ibanez have their own range of double-locking vibrato systems on their range of guitars. The "Edge III tremolo", featured on their low-mid range guitars, is a very similar bridge to a Floyd Rose. It features a pop in/out arm and lower profile tuners. Another system is the "Edge Zero", which has what Ibanez calls the "Zero Point System". This system lets the guitarist lock the guitar's floating state for tuning purposes. There is also the "Edge Pro tremolo" with a very low profile. Possibly its most notable feature is that it is designed to take strings without the removal of the ball end (or stringing backwards with the ball ends at the headstock). The Edge Pro also comes in a version called the "Double Edge Pro", which has piezoelectric pickups for acoustic sound.