This Ryobi Chain Saw runs using 2-stroke petrol, has an ergonomically designed handle and anti-vibration system made for user comfort, 380mm in size. Its powerful 40cc engine delivers power to cut through the toughest jobs, with a convenient primer bulb for easy starting. It has a Inertia-activated chain brake system for safety and is made with a built-in automatic chain oiling system for longer chain and bar life.