40V 21" Cordless Push Lawn Mower w/ Two 40V Batteries MB2400B2 in 1 Mowing System: Easily switch between mulching and bagging to keep your lawn clean and healthy. Push Button Start: No oil, gas, fumes, or maintenance required. Adjustable Cutting Height: Six positions (1. 5"3. 9") for the ideal grass length in any season. Foldable Design: Saves up to 70% storage space for easy storage and transport.