38cc, 2 cycle engine with electronic ignition and chrome-plated cylinder for longer engine life. Automatic oiler provides lubrication to bar and chain when saw is running. 18″ bar cuts logs up to 36″ in diameter. Anti-vibration handle reduces vibration to decrease user fatigue. Chain brake and hand guard stops saw when the users hand contacts the chain brake lever in the event of kickback, also includes inertia chain brake when the saw encounters inertia cused by kickback. 1 year limited warranty.