Product Description: Today's environmental issues include noise pollution and recent legislation limits the use ofstandard profile trimmer lines. The Twist Titanium Power Line offers a quieter solution. Developed through aerodynamic testing the Twist Line has outstanding air penetration reducing noisepollution without compromising on performance. Noise isn't all that's reduced. With its concentrated strength, the Twist Titanium Power Linerequires less engine acceleration. This makes it easier to cut grass, so your machine doesn't have to work at full power. You can saveon fuel costs and general wear and tear, increasing the life span of your trimmer.