The RYOBI Backpack blower brings professional power to every homeowner. In performance tests, this 2 Cycle blower out-performs top-of-the-line pro units. Designed with a unique air-flow orientation and angled air nozzles, this blower features an extra-large 42cc engine, a variable speed throttle and a cruise control setting to make quick work of the toughest of clearing jobs. The shoulder and back harness is designed for ultimate comfort, featuring a contoured back and easy strap adjustments. All backed by a RYOBI 3 year warranty, this 2 Cycle backpack blower is quite simply the best residential blower money can buy.