The Techni 280° trimmer line from Oregon is manufactured from high grade 6/66 Polymer & is the ideal trimmer line for heavy duty, professional grade applications, as it slices through long, thick grass & weeds with ease. Up to 30% more durable than traditional roundline, the Techi 280° boasts an impressive melting point of 280°C, so it is highly resistant to notches, wear, tear & welding.