CORDLESS LAWN MOWER – Get more done, faster, with Greenworks electric lawn mowers. This 40V self-propelled lawn mower provides to 60 minutes of run-time on (2) fully charged 4.0Ah batteries (varies based on grass condition and operator technique).Front Wheels : 8 Inches. Rear Wheels : Rear Wheels : 10 Inches DURABLE 21” STEEL DECK – The 21” steel deck allows you to handle large areas of grass quickly and easily. Brushless motor provides more torque, quiet operation, and a longer life. SMART PACE – The smart pace self-propelled system automatically & smoothly adjusts to your walking speed. Dual battery ports with automatic switchover for longer, uninterrupted run-times. When one battery depletes, it auto switches to the second battery. VERSATILE – Single lever, 7-position height adjustment for the best cut in all environments. The 3-in-1 design allows you to mulch, side discharge, and rear bag grass clippings. 3-Year Warranty – Backed by Greenworks 3-year limited tool and battery warranty for dependable long-term ownership. Works with 75+ Greenworks 40V tools(trimmers, blowers, chainsaws...)—expand your cordless toolkit.