Troy-Bilt TB2044XP 18 In. Gas String Trimmer The TB2044XP 2-cycle gas string trimmer is equipped with the Prime, Flip Go starting system and SpringAssist for easier pull starts, with the additional ability to use JumpStart. It comes with a Quick Change cutting head as well as a bonus Aero-Flex fixed line cutting head for a choice in cutting options. The Quick Change head allows you to convert from bump head to Aero-Flex blades in 30 seconds or less. The bonus Aero-Flex cutting head utilizes nylon blades to better cut through heavy vegetation without breaking or snagging on brush and obstacles. Cutting Width 18 In., Engine Size 27 cc, Engine Type 2-Cycle, Shaft Straight, Line Diameter 0.095 In., Cutting Head Quick Change Head, Weight 17 Lb., Warranty 3 Yr., Pkg Qty 1, Package Type Box Warning Cancer and Reproductive Harm www.P65Warnings.gov. Warning. This product can expose you to chemicals including engine exhaust which is known to the State of California to cause cancer and carbon monoxide which is known to the State of California