A line trimmer, also known as a string trimmer or weed eater, is a gardening tool used for cutting grass and weeds in areas that are difficult to reach with a lawn mower. It typically consists of a long shaft with a rotating head that uses a flexible nylon line to trim vegetation. Line trimmers are popular for maintaining edges along sidewalks, driveways, and flower beds. These tools come in various types, including electric, battery-powered, and gas-powered models. Electric line trimmers are quieter and require less maintenance, while gas-powered versions offer more power for larger areas. Users can easily adjust the length of the nylon line for different cutting needs.