Trimmer Head, Universal Quick Load 4-Line, Notes 2: Easy Line Replacement, Notes 3: Light yet sturdy, Notes 4: 12″ long., Notes 4: Includes 6 pre-cut pieces of .095″ Titanium Power Twist Trimmer Line. Each pieces is approximately, Notes 5: Works with trimmer line diameters .065″ – .130″., Notes 6: Fits most straight and curved gas trimmers, Notes: Fixed 4-Line Head. Centrifugal line locking system.