ECHO's SilenTwist is the go to trimmer line for cordless trimmer models. Available in .080" through .105" diameters it's a staple for light residential areas or homeowners who have noise restrictions or small yards.The design is in the name. SilenTwist is a twisted line that offers a clean, even cut in less time over other line types. It also maximizes battery run time, decreases drag on the trimmer and reduces noise levels of the line.