Troy-Bilt XP, 3-N-1, Self-Propelled Lawn Mower, 163cc Briggs & Stratton engine with Ready Start, 21" Steel Tri-Action Deck, Front Wheel Drive With Variable Speed Transmission, Integrated Deck Wash System, Rear Bag/Side Discharge/Mulch Capable, Mulch Ready, Rear Bag & Side Discharge Chute Included, 8" Front & 11" Rear Wheels, Dual Lever Height Adjustment, Adjustable Ergonomic Handle, Fully Assembled, For Replacement Blade Use TV #131-144, 2 Year Limited Warranty, 50 State EPA/CARB Compliant.