The NEW Genuine NOS STIHL AutoCut C6-2 Trimmer Head 4006-710-2103 OEM is a high-quality string trimmer part designed specifically for STIHL trimmers such as the FS40, FS45, and FS46. This replacement trimmer head is powered by gasoline and is compatible with STIHL string trimmers. With a power output of 2100 W, this AutoCut 5-2 trimmer head ensures efficient and precise cutting in your yard or garden.