SPECIFICATIONS: Replaces Stihl Autocut C6-2 trimmer head. OEM Part No.: 40067102126. SUITABLE FOR: Brushcutter head for STIHL FS38、FS40、FS40C、FS45、FS46、FS50、FS50C、FSA60R、FSA86R、FSE60、FSE71、FSE81, etc. PRE-INSTALLED LINE: Comes with a pre-installed trimmer line for direct use. And directly insert the line to replace it, no disassembly is required. EASY TO USE: When mowing, simply press the C6-2 head and the nylon line will be automatically adjusted, effectively improving your efficiency. PRACTICAL DESIGN: The practical replacement head for brush cutters, ideal for various mowing and trimming jobs in the lawn.