Hitachi CH22EAP2 21cc 2-Cycle Gas Hedge Trimmer with 20-Inch Double-Sided Blades Hitachi 21.1cc commercial grade 2-cycle engine for maximum reliability and durability 5 position rear handle for maximum comfort and maneuverability Forward-facing exhaust prevents burnt hedges 20" dual reciprocating commercial grade blades with safety tips Purge bulb and S-Start for quick and easy starts