The Troy-Bilt® TB105B push mower is designed with a 21" steel deck for durability and comes with a mulch kit engineered to finely mulch grass clippings and help add nutrients back into the soil. Featuring a dependable 140cc Briggs & Stratton® engine that delivers reliable power to get the job done right and is equipped with Prime 'N Pull™ technology for easy starting. Dual-lever, 6-position height adjustment makes it easy to change cutting heights from 1.25" to 3.75 "