The M350 23-in. 175cc Rwd Self-Propelled Mower with Pace Control System® automatically adjusts the mower pace to your walking speed while the rear wheel drive delivers added traction and control on flat, hilly, or uneven terrains. It features a 175cc Professional Series Briggs & Stratton® engine to deliver maximum performance. A 3-in-1 deck allows you to discharge (rear discharge sold separately), mulch to help put nutrients back in your soil for a healthy lawn, or use the 3.1 bushel Dust Blocker bag for easy clean up or composting while reducing in-air dust and debris. The dual-lever, 6 position height adjustment makes it easy for you to change the cutting height while mowing.