The Agri-Fab Smartcart tractor trailer has a 12 cubic foot capacity poly hopper & can be towed behind a ride on mower or garden tractor. Specifications 12 cu. ft capacity Tires designed for easy maneuverability Durable poly cart cleans easily Functioning tailgate with recessed hardware for easy assembly, dumping & cleanup Unloads & dumps heavy materials in one easy stepping motion Pin Hitch Manufacturer's 1 year warranty