QualityParts From Oregon That you can depend on. Impact resistant – Gatorline is made from a Nylon co-polymer that is fortified with additives so it lasts longer and breaks less: Square trimmer line – Slices through vegetation with a clean, even pass; .130" diameter trimmer line is a good size for industrial landscaping on areas that need a large amount of trimming such as large estates, yards and golf courses; Cuts through low grasses, weeds and brambles quickly and easily; Check your user manual for maximum diameter fit-up; ; Oregon Equipment Parts 21-530 Gatorline Round .130 5Lb Spoo