Heavy duty steel chassis and 4 blade disc cutting for most lawn types. This fully featured model can mulch or catch the cut grass. This powerful Briggs & Stratton engine self propels this mower. Save your back, let the mower do the work. Powered by Briggs & Stratton 140cc OHV Series 550ISI Intergrated InStart™ engineCut, Catch & Mulch460mm (18") heavy duty steel chassisFront 175mm (7") and Rear 200mm (8") adjustable mono bearing wheelsComfortable upturned upper handle with PVC gripReinforced lower handle for added strengthCamlocks for quick release handle fold downMasport 4 Blade Disc System for superior catching due to increased airflowSelf Propelled (Ground speed 4.37km/h)Zone start for comfortable starting positionHDPE Plastic Catcher