The MS 291 chain saw is an all-around reliable unit for farmers, landscapers and gardeners. Powered by a fuel-efficient, low-emission stratified scavenging engine technology which reduces fuel consumption by up to 20% and fullfils all emission regulations, this saw also includes an advanced anti-vibration system, and lightweight muffler to reduce operator fatigue. Part of STIHL's new generation of fuel-efficient, environmentally friendly chain saws.