The Stihl MS 400 C M Chain Saw with a 33RS3 2221 20″ bar is a powerful and versatile chainsaw designed for professional use. It features advanced engine technology, including M-Tronic electronic engine management, for optimized performance and fuel efficiency. The 20″ bar size allows for efficient cutting of large logs and timber. With its high-quality construction and innovative features, the MS 400 C M delivers reliable cutting performance and long-lasting durability in demanding applications.