Robin 21.7cc 2-cycle Commercial 16" Grass Trimmer 8" Brush Cutter NB223 RobinProfessional Series 21.7 cc 2-Stroke Grass Trimmer Brush Cutter Professional series straight solid steel drive shaft for maximum durability and minimum vibration. Low noise and vibration means minimal operator fatique .........Robin Commercial 21.7 cc engine shown in photo 1 and 2, ...... Loop handle design for optimum versatility (see photo 1), ...... 9" Blade, ...... 16``Bump & Feed Trimmer Head, ...... Shoulder Harness included............ 2-piece interchangeable Bump & Feed Trimmer Head and Protective Blade Guard included shown in photo 1 Wide trigger control and soft grip for comfortable operation Primer bulb and choke for easy starting