This genuine Stihl chain catcher is a critical safety component for petrol chainsaws, designed to stop the chain in the event of derailment or breakage. Constructed from durable metal, it mounts securely in the standard location on compatible saws, helping protect both the operator and the chainsaw body. Ideal for regular maintenance or as a direct replacement for worn or missing catchers, this OEM-quality part meets Stihl specifications. Part No. 0000 656 7700 ensures an exact fit and reliable performance on popular chainsaw models, including the MS311 and MS391.