... 3.Powerful,comfortable,stable and durable. Grass trimmer, also known as a string trimmer, line trimmer, weed whacker, weed whip, weed eater ... of startingHeavy duty gearcase with helical gears for smooth power transferEasy-access stop switch2-ring pistonHeavy-duty debris ... performance. Engine 2-stroke, air-cooledDisplacement 33.6ccMax. Power 1HP/7500r/minSteel Blade 10"String Spool 2.2mm*5m ...