Durable poly hopper, coated components & long-lasting stainless steel closure plates resist corrosion. Positive over-center flow adjustment ensures accurate calibration. This 100 lb Agri-Fab Tow Broadcast Spreader has a durable poly hopper & is suitable for areas of around 17, 500 sq feet or 1/2 acre. It has a spread width of 8'-10' & acetal gear drive. Please note: This model is supplied in kit form for home assembly. Manufacturer's 1 year warranty.