GREENWORKS G-MAX 16“ 40V ELECTRIC CORDL 16 inch bar and chain perfect for tackling tough jobs Automatic oiler applies oil to the bar and chain to ensure durability and extend the life of the chain Hassle free push button start Up to 30% more torque for the greatest cutting performance up to 70% less vibration for improved comfort while working Electronic chain brake prevents from accidental kick-backs Compatible with Greenworks 40V Li-Ion system for higher efficiency and longer run time with an assortment of tools to complete your yard work