The ECHO SRM-4510/U Is Light Weight And Well Balanced, Yet Offers Extreme Power Due To Its Heavy Duty 45.7cc Engine. Ideal For Heavy Brush And Long And Thick Grass.Whether You're Using Nylon Line Or A Blade You Can Be Sure The Job Will Get Done, Fast And Hassle Free. Market Segment: Professional Dry Weight: 7.7Kg Engine Displacement: 45.7cc Fuel Capacity: 0.95L Gear Reduction Ratio: 1.36 Output: 1.7kw