Battery-Powered String Trimmer Kit, Power Source Cordless, Cutting Width 16 in, Line Diameter 0.08 in, Line Advance Bump, Shaft Type Straight, Shaft Length 40 in, Attachment System Compatible Attachment Capable, Battery Platform M18(TM) REDLITHIUM(TM), Number of Batteries to Operate 1, Number of Batteries Included 1, Number of Chargers Included 1, Bare Tool/Battery Included Battery Included, Battery Capacity 8.0 Ah, Motor Type Brushless, Equivalent Gas Engine Displacement Not Applicable