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: Round trimmer line – the most popular trimmer line shape. Offers effective cutting for a range of applications. More durable and longer lasting than square trimmer line; .080" diameter trimmer line is a good size for small jobs around the house, such as trimming lighter weeds in the yard and sprucing up your garden; Fits many popular string trimmer models including, but not limited to: Stihl FS 45 and FS 40 C, DeWalt DCST920P1 and DCST970X1, Ryobi RY40220 and Greenworks 21362; ; ; Oregon Equipment Parts 21-580 Gatorline Round .080 5Lb Spoo