1) 550w/550w grass trimmer 2) no load speed: 11000rpm 3)cutting diameter:320mm 4) telescopic handle 5)Tap&go system 500W/550w grass trimmer GS/CE/EMC/ROHS approval Electric voltage/frequency ;230V/50HZpower:500W/ 550wno load speed :11000rpmcutting diameter:320mmaluminum tube coated with lacquerwith 6 orientation and distance is 20mmTelescopic handle :0-290mmworkaround and handle with 6 ...