This is Echo's High-power 73.5 cc 2-stroke commercial grade engine. With the 3-point spring vibration reduction system for operator comfort. Air-Injection air cleaner uses centrifugal force to separate the dust and debris from air resulting in longer air filter life. Has a aluminum handle with rubber grip for strength and comfort. Chrome plated cylinder for long engine life. Magnesium crankcase and sprocket cover for strength and light weight. Pleated air filter with a large surface area to ensure steady flow of clean air to carburetor.