Equipped with a simplified starting procedure, the FS 251 is a heavy-duty trimmer built for pros with no time to waste. Designed with a powerful low exhaust emission engine, the FS 251 saves on fuel and operating costs without losing any of the power. The FS 251’s easy-to-adjust bike handles provide comfort and ease while tackling widespread, overgrown areas. With a rugged design that offers optimal maneuverability and a vertically-pleated paper air filter that provides an extended service life, you can get to work quicker and count on the gas trimmer to last longer. Note: Available for purchase in California with the 4-tooth grass cutting blade only.