shindaiwa 211 MPH 1071 CFM 79.9 cc 2-Stroke Gas Engine Backpack Blower with Hip Mounted Throttleshindaiwa EB810 offers the best blowing performance in the industry to help tackle your toughest jobs. The hip mounted throttle lets you control the power and direction to move leaves to heavy wet debris meeting all your fall clean up needs. The EB810 has a 91 mm Dia (3. 6 in.) blower pipe for maximum air flow. 79. 9 cc 2 stroke professional grade engine Carbon fiber frame and fan case contribute to the lighter weight Heavy duty backpack straps for