This mower is equipped with patented cutting technology bringing an innovative mulching technique plus Vortex Technology that supercharges your cut with an amped up under-deck airflow that cuts grass into teeny-tiny, clumpless clippings. Giving you lawn Vitamins for free. Or throw on the grass bag and start your lawn vacuum that holds more so you empty the bag fewer times. Easy go with the curved ergonomic handle allowing your hands and wrists to rest easy as you mow. This model features a powerful 150 cc Briggs and Stratton engine with a durable 22 In. steel deck for you to enjoy for years to come. The large rear traction high-wheels deliver easier maneuverability and greater cutting precision over uneven terrain. Combined this with best of all, no oil changes for the life of the engine. Just top it off. This rotary-blade, walk-behind lawn mower is intended to be used by residential homeowners. It is designed primarily for cutting grass on well-maintained lawns on residential properties.