Lawn Boy 10647 20-Inch 6.75-Gross Torque Briggs & Stratton Gas-Powered Variable Speed RWD Self Propelled Lawn Mower with Electric Start 6.75 GT 675 Series Briggs & Stratton Ready Start Engine Variable speed rear wheel drive self propell 20-Inch Steel Cutting Deck 3-in-1 to bag, mulch or discharge grass clippings CARB compliant