The FixCut 31-2 Trimmer Head is specifically designed for STIHL trimmers, including models such as FS55, FS56, FS80, and more. This high-quality trimmer head is compatible with 2-stroke engines and operates on gasoline power. It comes ready to use with no assembly required, making it a convenient and reliable choice for maintaining your yard and garden. Made in the United States, this trimmer head ensures durability and efficient performance for all your outdoor trimming needs.