550CFM Air Volume: This backpack blowers gas powered produces 550CFM of air volume at high air flow of 1.25 KW/1.7 HP engine power, making it reduce emissions and increase fuel efficiency. Ergonomic Backpack Design: Gas leaf blower backpack features a padded harness and weight-leveling load management system , which helps you feel comfortable when having it on for long hours. 2-Stroke Engine: 2-Stroke engine for excellent performance, good gas economy and low emissions. High air speed combined with large air flow gives sufficient capacity for most jobs. Easy to Operate: Air purge system removes air from the carburetor and fuel system for trouble-free starting, and adds the variable speed throttle with cruise control allows for easy operation without the need to regulate the backpack blower's speed. Lawn Care: The gas powered leaf blower simplify the process of regular yard maintenance and more demanding lawn care tasks, such as cleaning up heavy, wet leaves and debris. Item Name: Leaf Blower Material: Metal, Plastic Engine Type: Single-Cylinder Air-Cooled 2-Stroke Displacement: 52cc (Differentiated Platform 43cc Displacement) More Advantageous Bore: 1.57 Inches Stroke: 1.34 Inches Idle Speed: 2800-3000 rpm Rapid Speed: 6800r/min Engine Power: 1.25 KW/1.7 HP Air Flow Rate: 550 CFM Features: Backpack Style, Ergonomic Design, Long Pipe Size Details: L: 180cm/70.87", W: 45cm/17.72", H: 45cm/17.72" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Leaf Blower 1 x Installation Kit 1 x Mixing Pot 1 x Funnel 1 x English User Manual