Husqvarna 122HD45 18" 22cc 2 Cycle Gas Powered Saw Hedge Trimmer w/Toy Replica New Husqvarna 122HD45 18" 21.7cc Gas Powered Dual Blade Hedge Trimmer Low noise engine Smart Start The engine and starter have been designed so the machine starts quickly with minimum effort. Auto return stop switch Stop switch automatically resets to the ON position for easier starting. Air Purge Removes air from carburetor and fuel system for easy starting.