A lawn trimmer, also known as a string trimmer or weed eater, is a gardening tool used to cut 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. Lawn trimmers are ideal for edging along sidewalks, fences, and flower beds. These tools can be powered by electricity, batteries, or gasoline, offering various options for users. Many lawn trimmers come with adjustable handles and cutting widths, making them versatile for different landscaping tasks. Regular maintenance, such as replacing the nylon line, ensures optimal performance.