Gear Systems warranted for life of spreader. Accu-Way feature for spread pattern adjustment available on most units. Deflector accessories for side and drop applications. Polyurethane hopper with 110 pounds / 2.03 cubic feet capacity. One-piece welded frame. 5/8" solid stainless steel axle. 13" x 5" pneumatic tires. Enclosed metal gears. This is model 76-22 which includes a powder coated frame. Model 78-22 includes a stainless steel frame (pictured).