The RainTrain uses the power of water to navigate around a lawn. Durable cast iron body with chip resistant paint. Adjustable spray arms support a wide range of coverage. Automatic shutoff ramp prevents water waste. Spray arms cover 15ft to 55ft in diameter. Turn the arms slightly downward to cover a narrower area. 3 Speed settings adjust the level of water saturation. Covers up to 13500 square feet. Travels up to 200 feet.