Yard Machines 21" Side Discharge/Mulch Front Wheel Drive Self Propelled Gas Mower: * 21" blade * Self-propelled front wheel drive * Briggs and Stratton 140cc OHV engine * Side discharge * Mulching * 6-position dual lever height adjusters * 8" front/rear wheels * 2-year warranty * Model# 12A-A03M700 Having trouble choosing the right mower? See our Lawn Mower Finder. Some of our outdoor power items include special returns policies - learn more here.