Self-Propelled RWD Gas Push mower has a 163cc Briggs & Stratton engine and one-step starting which requires no priming. The 3-in-1 deck capabilities allows you to side discharge￡ mulch and help put nutrients back in your soil for a healthier lawn or bag for easy clean up or composting. This mower has 6 position height adjustment makes it easy to change cutting heights from 1.25-in to 3.75-in high.