Troy-Bilt TB42 BC 27cc 2-Cycle Gas Brushcutter with JumpStart Technology When a string trimmer alone just can't get the job done, rely on this brushcutter to power through dense weeds and brush Premium 27cc 2-cycle full-crank engine with JumpStart capability eliminating the need to pull cord Adjustable J-Handle provides added control and easy right or left-handed use;Line Replacement System : Standard 8-inch 4-tooth steel brush blade for taking on heavy vegetation Attachment-capable design allows the trimmer engine to power 10 different TrimmerPlus attachments, turning your trimmer into a garage full of tools Foot-pedal automatic CVT (continuously variable transmission)