Swisher 22-Inch Trim-N-Mow Trimmer With 6.25 HP Briggs & Stratton 625 Series Engine - California Ready ST60022Q-CA8 6.25 HP Briggs & Stratton 625 Series Engine Tough .155-inch Square Cutting Line 14-inch Wheels Self-adjusting belt tension extends belt life and improves performance Safety - automatic shut-off when handle is released during operation