Check the listing for details. WESTWARD 10F635 Broadcast Spreader,30 lb.,Pneumatic 10F635. Condition: New. Listed at 165.08 USD. Manual Walk-Behind Spreader, Capacity 30 lb, Handle Loop, Drop Type 1 Hole, Flow Control Cable, Includes Cover, For Use With Fertilizer, Grass Seed, Ice Melt, Spread Width 12 ft, Frame Steel, Hopper Material Polypropylene, Wheel Type Pneumatic, Wheel Dia. 10 in, Wheel Width 4 in, Axle Type Stainless Steel, Features Calibrated Flow Rate Control Plate, Spray Width Not Applicable Your spreader is designed to be pushed at three miles per hour, which is a brisk walking speed. Slower or faster speeds will change the spread patterns. The spreader is useful for spreading a range of materials (ice melt, fertilizer, and grass seed). Materials such as powder, manure, top soil, gravel, and mulch have the wrong physical characteristics and should not be used with these spreaders. Keep the impeller plat.