This genuine Stihl hand guard is designed for use on the MS 231 chainsaw and helps protect the operator’s forward hand while maintaining safe control during operation. Made from durable, impact-resistant polymer with a black finish, it serves as the front hand guard and works with the chain brake mechanism to assist in stopping the chain during kickback. Engineered for direct installation on compatible Stihl models, including the MS 231 and MS 251, using the original mounting points and linkage.