High Performance--62cc 3.4hp powerful gas chainsaw delivers steady power to the 20-inch bar and low-kickback chain. The engine speed can be up to 8500 rpm. Ideal tool for cutting firewood and felling trees with a much higher efficiency Auto Oiler--Automatic oil supply system delivers a steady supply of bar and chain oil for safe and effective use, and extends the life of the chainsaw.While providing the highest cutting performance helps reduce fuel consumption by 20%. More environmentally Reliable and Professional--Professional gas chain saw, equipped with high quality chain and high hardness bar, fast cutting, more durable and high wear resistance, not easy to drop chain, having a longer using life Ergonomic Design -- The comfortable handle design, non-slip and shock-absorbing, not easy to fatigue for a long-term use, making this chainsaw balanced, maneuverable, and comfortable to operate, use more securely Warranty: We are committed to providing our customers with high-quality products and exceptional customer service. Amazon's return policy does not cover gasoline-related products, so if you have any questions, please contact us directly by Amazon Email or our official website