The TB51BP backpack leaf blower from Troy-Bilt® offers superior power with a 51cc two-cycle full-crank engine. Its backpack design allows for reduced operator fatigue and fits the shape of your hips and reduces pressure points. It features high volume airflow/velocity (600 CFM/220 MPH) for efficient cleanup. Its SpringAssist™ technology allows for easier pull starts and the variable speed throttle with cruise control settings provides greater control and ease of use. The TB51BP backpack leaf blower comes with an ergonomic soft-grip handle for comfort and easy operation. Includes two-cycle engine oil and a three-year limited warranty.