Magnum Gatorline is professional trimmer line made for commercial use. Made from the dual polymer process, this line is made of two different materials to give it optimum performance. The core is made from a high strength polymer that resists breaking. The outer layer is made from a abrasion resistant polymer with anti-welding properties. The outer layer is also reinforced with Aramid fibers, making it incredibly long lasting. The result is a premium trimmer line that is very resistant to breakage, welding and abrasion.