The Swisher Walk Behind Gas String Trimmer has a powerful 6.5 Gross Torque Briggs & Stratton 650 series engine. Wide 22" cut. Tough .155" diameter cutting line. Automatic shut-off when handle is released during operation. Maintenance-free trimmer head. 16" wheels, protective eyewear, engine oil and replacement trimmer line. Move tangle-resistant cutting head from left to right for easy trimming and rotate 90 degrees to edge sidewalks and driveways. Cutting line is easily replaced without tools.