The Yamaha RGZ 211M is a super strat made in Taiwan in the late 80's / early 90's. It has an HS pickup configuration, a black Yamaha RMX III Floyd Rose tremolo and black tuners. The RMX III vibrato is a re-designed version of the RMX II featuring a torque-adjustable pop-in/out arm and sleek low profile. The M in the model name stands for the maple fingerboard. There is also the Yamaha RGZ 611M which has the Yamaha RM-Pro II vibrato. Other features are: