When shopping for trim lines, there are three styles to consider, including circular, polygonal, and twisted shapes.
Round Rope: Available in a variety of sizes, round rope is affordable, easy to use, and durable enough to handle some lawns with sprouting weeds,String trimmer line, although you may end up with rough rather than clean weeds due to overgrown struggle.
Multi-sided rope: A better choice for overgrown lawns, multi-sided rope provides a cleaner cut but tends to break when used to mow near hard surfaces
Stranded wire: Stranded wire is extremely durable and ideal for use on or near harder surfaces, as well as tackling thick weeds. It's also a quieter option for those who might be concerned about noise levels.
like: