ECHO PB-580H Leaf Blower Backpack Hip Mount Throttle 58.2cc EngineECHO PB 580H Leaf Blower Backpack Hip Mount Throttle 58. 2cc Engine Highest performance in its class Features: 58. 2cc professional grade, 2 stroke engine delivers superior power and durability Metal wear ring protects blower pipe from damage Pleated, automotive style air filter provides superior air filtration for long engine life Hip mounted throttle Leaf guard for keeping debris out of fan intake Padded backrest and shoulder straps for comfortable