1. Made of high quality material, durable and practical 2. Easy to install and reliable to use 3. Material: plastic 4. Suitable for Stihl FS160 FS220 FS280 FS300 FS310 FS350 FS400 FS410 FS450 FS460 FS480 5. Precautions: It is necessary to check whether the model and specification are applicable