Troy-Bilt TB330 163cc 21-inch 3-in-1 Rear Wheel Drive Self-Propelled Lawnmower Powered by a 163cc Briggs & Stratton Engine Equipped with a 21-Inch TriAction cutting system with integrated premium deck wash Designed with a single-lever variable speed drive control with four top speed settings for individualized comfort and control Comes with a 3-in-1 side discharge capabilities, mulch or rear bag - with a 1.9 bushel capacity bag included Designed with 8 x 8-inch high performance wheels and an adjustable ergomatic handle for added ease while operating