1. Suitable for machine types: chainsaws, pole pruning machines, pole saws, etc. 2. Made of high quality material, durable and practical 3. Easy to install and reliable to use 4. Suitable for Stihl FS100 FS110 MS200 MS210 MS230 MS250 MS270 MS280 MS340 MS341 MS361 MS380 MS381 MS441 MS460 MS880 5. Precautions: It is necessary to check whether the model and specification are applicable