Includes (1) Trimmer Line. New, Bulk Packed. Genuine OEM Replacement Part # DWO1DT915. Consult owners manual for proper part number identification and proper installation. Compatible with the Following : DWO1DT801,885911411851,B00TF02KIQ,DWO1DT801,885911411851,B00TF02KIQ,DWO1DT801,885911411851,DCST920B Type 2, DCST920B Type 3, DCST920P1 Type 1, DCST920P1 Type 2, DCST920P1 Type 3, DCST970B Type 1, DCST970X1 Type 1, DCST990B Type 1, DCST990B Type 2, DCST990H1 Type 1, DCST990H1 Type 2, DCST990M1 Type 1, DCST990M1 Type 2, DCST990X1 Type 2.