ECHO 234 MPH 756 CFM 63.3cc Gas 2-Stroke Cycle Backpack Leaf Blower with Tube ThrottleThe X Series ECHO PB 770T gas leaf blower makes yard cleanups easy and comfortable. The yard blowers throttle is conveniently tube mounted and features a cruise control function, and the variable speeds allow you to adjust air speeds to fit your cleaning needs. The backpack lawn blower features padded shoulder straps and a ventilated back pad for comfortable use. Use a 50: 1 ratio of fuel to oil mix for 2 stroke cycle engines; recommend using only