The specification of ATVtow spreader as following: hopper:2mm steel panel capacity:350LB gear box:heavy-duty cast iron,and oil bath gear wheel:15"/6.00-6 pneumatic wheel, precious powder metal bushingcoupler:2 inch coupler surface finish: powder coating color: customized color,red&black avaliable package:plywood crate dimension of package:92x90x34cm N.W.:63KGS G.W.:83KGS 164units/40'containerOne year warrantyThis spreader behind the tractor,ATV cart. Mainly for spreading seed, fertilizer, salt and sand.