Jonsered BB2250, 50.2cc 2-Cycle Gas 692 CFM 251 MPH Backpack Leaf Blower User-friendly cruise control feature for setting consistent blowing speed for easier handling. Fuel pump designed for easy starting. Load-reducing harness system with hip belt and wide shoulder straps for increased comfort and reduced operator fatigue. Soft-grip handles for increased comfort and reduced user fatigue. Simple, quick tube length adjustments for optimal performance and reach.