The Billy Goat^® OS550 ser. conserves seed with Billy Goat’s exclusive Auto Drop feature by automatically starting or stopping seed drop with bale engagement. The heavy-duty bale controls both seed release and blade engagement. Select the correct drop rate without all the guesswork. The 25-lb capacity front mounted poly seed box won’t rust or dent. On board instructions are conveniently mounted under the lid to help set seed drop rates. Pictured: OS552H