MTD 121-342-300 is a self-propelled, 2-inch rear-discharge lawn mower. It is powered by a gasoline engine and has a cutting width of 21 inches. The mower features a 1.9-bushel grass catcher and a mulching option. It is also equipped with a convenient handle storage feature for easy storage. The mower is designed for use on residential lawns and is ideal for homeowners who want a powerful and efficient mower that is easy to use and maintain.